I have owned and shot firearms for over 50 years, this presentation is the most complete explanation covering both the theory and practical sides. I just subscribed a few days ago discovering the channel quite by accident , what a treat, no BS , NO HIP SLICK AND COOL , just cogent well presented discussions. Thank you.
@@ivobiancucci4528 Yes, I hate loud obnoxious intros and exits that wake the dead. I complained to presenter that I really liked about his loud music, that added nothing to the content but woke my wife. His response, "screw you". OK
yonny1954 Yes, he's the best. No rock music or shoot 'em up intro. He's not a slave to any brand. No infomercials here. He does need some tattoos and one of those Robert E. Lee beards though! LOL.
Captain has changed the way I shoot, changed the way I reload, deleted the way my wallet gets spent on useless junkie products, the way I clean my guns and preserve my guns, ALL for the better, with each of his videos! What he knows and shares will carry on and on. The truth is the truth! I'm very grateful to him and commenting fellow subscribers.
Its a treat that he posts on youtube also. Most of these salt of the earth good guys dont want anything to do with tgis platform. Love your channel Captain. You've got this 34 year old hooked on your knowledge.
Been making barrels for 42 years...and I can be buffalo'd by all manner of things. Rifle barrels aren't one of them. Really nice to hear a well spoken, well informed gent who lays proper information on the line. Ya' nailed it son..!! There are SO many "gun experts" out there who are so grossly misinformed, and then pass these misconceptions on to others...its sickening.! I watch many of these videos scheptically..waiting for the nonsense to start. YOU are a breath of fresh air..!!! A well informed gent who properly phrases "gun speak". Definately not your first rodeo.! Thanks for helping the average neophyte out there. I've dealt with far too many who are genuinely clueless. Lets hope some of the info you're imparting sticks with a few of these guys.! Keep it up..! Made me smile......! Regards...
I'm 65-years old, been around firearms all my life, and learn so much more about firearms from your channel. Wishing you the Best and Thank You. Alaska John
The whole time I was watching, Proverbs 18:15 was going through my mind which says, "The heart of the prudent getteth knowledge; and the ear of the wise seeketh knowledge". I know where to come when I seek firearm knowledge! Thank you for giving your time, knowledge, and wisdom. I have learned more about shooting equipment from you, than anyone else. That also goes for my wife and my daughters; they feel the same as I do! May God bless you in abundance!
Hello Sir, Thank you for your gift and your time. Nothing better on a Friday night than putting more valuable Gunblue knowledge in my memory banks Take care Rick Mansberger ps. Hi Benny
Thank you for making the complex still complex, but understandable! I appreciate the effort that you put into your videos, and your ability to make me understand the processes, without just telling me what I want to hear. Like me, you're old enough to remember the Memorex commercials with Ella Fitzgerald. You are the real deal, you are an original! Too many people are running around the Net repeating what they hear with no understanding of what they are talking about. You're an educator! Please keep up the hard work! Your efforts are not going unappreciated. Thank you and......well, you know!
Wow that was an excellent presentation! I really liked that it had no annoying music as some others stated. Thanks for showing how to measure the barrel twist too. It was all interesting!!!
Someone who knows what he is talking about ,no stupid background music /noise and strangely an American who talks on subject and not a sales spin ,..refreshing and others I hope will follow your example .
Amazing - you appear to just switch on the camera, stand in front of it and give an incredible, fascinating lecture without notes or prompt - as if you were a college Professor! If you haven't written a series of books on shooting, you ought to seriously consider doing so. Many Thanks & Best Wishes from the U.K.
Gotta love this guy. I wish I could personally go to the range with him. Please keep them coming. Cannot help but learn something each time. Thank you.
I've been watching you for a good long time now and occasionally return to selected videos such as this one. You are a treasure and wealth of knowledge. I appreciate also, you are a man of God and your morals are consequently golden.
Dang! How you don't have a million subscribers is beyond me, thank you so much for sharing your extensive knowledge and expertise, it is not only valuable but captivating in its interest. Salute.
You have answered every question in a half hour that I've ask others about in the last 20 years. I was literally glued to my android listening and taking notes.Thank god I found a channel that was recommended to me by Utube. You have a new fan. God bless.
Last time I heard a guy like this, I was talking to a gunsmith who had been building, repairing and shooting firearms for over 50 years. Thank you, sir.
GunBlue490, I asked this question of you regarding a .243 in another video, and after you answered, the implications of shear force on lighter thin jackets were clear to me. My Ruger target .243 with 1:9 shoots better using a 70 gr than a 100 gr, but only marginally so. It would not affect a hunting situation should a 1:10 be present in a hunting .243 rifle. I think, after reading many forums the last couple of years, you are exactly right in the description of use for .223 and heavier, longer bullets. Also a trend is now to the 300 blackout where individuals are shooting subsonic 220-240 grain bullets and looking for a way to stabilize these heavy bullets. I have noticed questions on the forums even regarding subsonic or reduced loads for .308. Just as you mention Remington changing the twist for the hunting applications of .243, perhaps the trend for the 300 blackout group is influencing the questioned need for faster twist? Your answer is spot on....individuals should ask themselves what their intent on owning the firearm is. Thanks for the explaination!!!
Fantastic information , will recommend this video to all my friends. Wish I had your teachings when I first started learning to shoot. You are very much appreciated and thank you.
This guy is the real deal. No BS and a wealth of information like no other I've ever heard. Like going to a "firearms university". I have been around guns for 50 years and have learned more in the last few months than I thought possible. These videos should be a requirement for anyone working in the gun or ammo department in any retail store. A true learning experience and a pleasure to listen to. Thanks, John Torian
Outstanding video. You really know the art! I love learning from what you have to share. Thanks a ton. This is a video worthy of watching about nine times!!!
ive been shooting for years and have shot many different calibers. This man knows his stuff!!! i find myself looking forward to all his videos. I'm learning so much from you sir and i thank you!
Great information as always! We love seeing your channel grow day by day. May God continue to bless you and this channel. And so true about what's popular. In general we typically don't do trends whatsoever. We'll see you on the next one...
well all i can say is to bad i didn't find this guy years ago when i purchased all the parts to build my AR 15. back then like he said most everyone was saying 1:7 twist was the way to go an maybe it still is for a 16" barrel shooting 55 gr. and 62gr green tip 5.56 ammo. wish i knew now. i hope it is as o'm not going to go and buy another barrel just to get a 1:9 twist rate or something like that. anyway it was really great to listen to him explain twist rate and what happens to bullets this far out or that far out. best thing is i could listen to him talk about this stuff all day, thank you sir.
All true and correct however, a 125 SST loaded in a 308 under 4895 (light load) or Varget (heavy load) are killers on Texas Whitetail out to 200 ish with a 1/10 twist.On the other end, I've been successful with 220 interlock round nose under Varget out of the same rifle while on in your face pig hunting adventures in the thick east Texas bottom lands.Gunblue and Hickok are by far my favorite you tube channels. Thanks for all ya do.
For those extreme ranges that don't apply to most shooters it is possible to have to much gyroscopic stabilization relative to aerodynamic stability because it fights the bullet aligning its self to the relative airflow as it gets late in the trajectory arc. Very corner case but it is there just the same
This is the absolute best gun channel on RUclips. I only discovered your channel yesterday and have already watched several of your videos. Reminds me of listening to lectures in college. Thank you for your service and sharing your knowledge. I, for one greatly appreciate what you do. Subscribed
If the diameter and the density of the projectile does not change, the more mass you have, the longer the projectile. Longer projectiles are more likely to tumble because the center of gravity is further from the point of the projectile. This means more revolutions per second are required to get the proper gyroscopic spin, but increased velocity increases revolutions PER SECOND. The other means of creating more revolutions per second is to increase the twist rate for the same distance covered per second. A .223 with 60 grains with a velocity of 2000 feet per second with a twist rate of 1:12 will turn one rotation in one foot at 1/2000th of a second, yielding a RPS of 2000 using 533 ft/lbs of energy. A 22LR with 60 grains with a velocity of 1000 feet per second with a twist rate of 1:6 will turn two rotations in one foot at 1/1000th of a second, yielding a RPS of 2000 using133 ft/lbs of energy. They will both have the same amount of gyroscopic stabilization with the same projectile mass, but at different velocities. A good example of this is the Aguila SSS 60 grain subsonic cartridge out of a 1:18 barrel. It will begin to tumble the moment it hits resistance. With a 1:7 twist rate, it is stabilized. A .223 would not tumble with a 1:18 barrel because its velocity is near 3000 fps. REGARDING "TOO MUCH RPM," the bullet is sized to the grooves; NOT the bore. A .357 has a .350 bore. So the bullet gets swaged to the bore size. This makes sure the bullet "obturates" or fills up the barrel to seal the gas pressure instead of wasting energy. The barrel does not give, so the bullet must. If the bullet metal is not soft enough to swage, it will fragment. It is NOT to much RPM or even pressure. It is far too little give in too short a space of time, not gyroscopic centrifugal force.
I'm an average type of guy and I've never really given any consideration to the rifling twist other than the actual condition of the lans and grooves. So thank you very much for confirming my belief that to us average shooters it really doesn't matter. Best regards.
thanks for the tip about squaring the target to the shooter then checking the circularity of the bullet holes. I'll do that very thing when checking the tuning on my bow or crossbow setup, but it never occurred to do that same thing to check a rifles "tuning". good advice, please keep it coming!
Great advise as always. I have buddies that chase trends like crazy. For example if it does not say magnum on it it's just weak. Instead of waisting my time trying to explain it to them in just going to start sending links to your videos. Thank you for the time and effort you put in your videos. God bless!
Thank you for the clear explanation! You should use the 220 Swift as an example, when first introduced by Winchester (1935) the factory load was with 46-48g bullets so the twist was (and still is) 1 in 14". I have a Ruger M77V with 26" heavy barrel and would love to shoot some of the 70g+ high BC bullets for longer ranges...but they won't stabilize. The small .223 Rem will handle the big bullets but the giant Swift won't.
Great video on twist! Especially the example you provided with the 22-250, typically having a slow twist, yet providing extreme accuracy with short 55 grain bullets. Regarding high velocity bottleneck rifle cartridges of .22 thru 25 caliber the fastest twist intended for longer bullets doesn't always determine accuracy, bullet integrity and even stability in some instances. Thank you.
Im a new subscriber! And have been learning a great number of things from your content. I live in NE Washington state. With nothing else to do besides watch it snow .And am new to reloading so thank u!
You need to write a book, as well as a reloading manual with your favorite recipes. I would be more than happy to pay for such books from you, and I'm confident I'm not alone.
Very good information put in a way that we all gain practical application knowledge. Also if your a hand loader most loading manuals use standard twist rate barrels as the basis for their loads for a particular cartridge.
My old (i purchased it used in 2017) Savage 99E chambered in .250-3000 tends to drive me just a bit nuts when it comes to bullet weight and type/design v powder charge v rate of twist. I love the rifle and I'm fascinated, maybe even a bit obsessed, with the cartridge as it SEEMS to be every bit as "good" as any .243 and many .270s I've had the occasion to shoot and/or hunt with. I've aware of the, sort of messed up, history of the round but I've accepted the challenge and hope, during the 2018 deer season, to make it my primary deer rifle while keeping my shots to around 200 yards at most when firing 100grn JSP rounds. I also plan on using the rifle and cartridge combination to thin out the coyote population when the opportunity presents itself while using the same ammo as I intend to use on deer. Having said all that, I'm a tad confused, thanks to some conflicting information I've found in print and online, as to the "best" bullet weight, design, and rifling twist for the .250-3000/.250 Savage. Since I have no plans in this lifetime to hunt anything bigger than South Eastern whitetail deer with my old Savage lever gun could you possibly suggest a "every man's" bullet and powder combination that will be usable, and dependable, on both deer and coyotes? If you do not feel comfortable providing such information online I completely understand considering the world we live in today. Thanks for the video though it's a year old now.....And I have no idea how I missed it the first time around. Take care and keep great videos coming!
Try a 25-06 off the shelf with off the shelf ammo and you will be surprised how it meets your objectives, and remember that even a key-hole round kills. Precision is repeatability such as a tight group several inches OFF target, but accuracy is hitting the target even in a shotgun pattern, but ON target.
I really like this video and the subject matter. I wanted to ask about barrel vibration and the possibility that it could match up with the bullet rotation speed. I always suspected the two were not even close, but I don’t know that. I assume a bullet leaving a barrel at 3000 ft/sec with a 1:12 twist (or one twist per foot) would spin at 3000 rev/sec. I don’t think the barrel’s natural mode of vibration would be any where close to that, but maybe there could still be a harmonic match up. One place I’ve been suspicious is with one of your favorite guns, the mini 14. Ruger changed from a 1:7 twist to 1:9. I was guessing it had to do with a lot more 55 grain ammunition being fired from the gun and matching the barrel design better to the 55 grain bullets. I’ve been meaning to see if my old mini 14 shoots a little better with the heavier bullets, not that that I’m unhappy with the 55 grain results. Great video.
Great info! My father likes using heavier bullets when hunting big game for stability and humane kill, plus Gotta be loaded for bear, I recently built an A.R. 15; 16 inch with a one and seven twist because I figured faster twist would be better for most 5.56 and 223 loads. After deer hunting most of my childhood with a 30 cal rifle all A.R. 15 loads looks small to me
With only one thumbs down, it only proves that we live in a free democracy and we have the right to choose to remain stupid. I learned more about rifling twist in your video than I have in the last 10+ years of RUclips videos, combined. Maybe I've been watching the wrong videos? So what I gather is that there is a myriad of variables, but not very off the wall. I loved the part when you said boat-tail bullets have yaw the first couple of hundred yards, which is true, and can be seen in short range paper targets, but the accuracy at range far exceeds the minor yaw that if everything is consistent, it is practically pleasurable and unaffected to accuracy; similar to surfing with a shark underneath waiting for you to fall, if you don't think about it, it doesn't affect you. In Aberdeen Maryland, as an armorer instructor, I shot a ten shot group through a tricked out M-14 (7.62 "total metal jacket" not full metal jacket bullets) through the same 3/4 length key-hole at 25 yards and a sub-MOA at 1,000 yards, with the same load. Your statement brought back memories and a flash from the past. Those were lathed bullets, very expensive and experimental at the time that not even Carlos Hathcock was supplied with them. Great video, liked and subscribed.
Cut rifling, Button, other?? Barrel harmonics? Bedding (how/where), PSI and barrel wear, Penetration not a function of speed but bullet design, rise of magnum Craze, why 30/06 is the best (oh boy). Well you get the idea. Would love to hear your views on these 😊
I just got a smoking deal on a PBB barreled action: Mesa Precision Summit Ti LA PBB 18" CF 3R 1:12 This is my first "varmaint" rifle and id love to talk to someone who has experience in loading and data 🙏🏻
Your videos are like a flash light in the dark corners of ballistics. You made me realize the relation in twist rate, bullet velocity and resulting RPM all in the context of chamber pressures. A long twist rate is not necessarily a slow twist rate since I might want a higher velocity for the intended task, which a short twist rate might not allow since it raises chamber pressure. Your channel is the only one with this angle. Great stuff and thank you sir.
Kine Vision You revealed to me that "slow twist" is sometimes misinterpreted to imply slow velocity. I was not aware of that unrelated connection that may be perceived by some. I may do a part II that illuminates that issue. This is what is meant by the saying; "I did not know what I did not know". Thank you.
Awsome video I learned a lot of info thank you. I do have one question though. I have a Christensen Arms mpp .308 with a 12.5'' barrel and a 1:7 twist. I purchased the Hornady CX 180gr bullets but wondering about a powder and charge. I'm thinking Varget powder. This is for an Elk hunt. I know my distances will not exceed 300 yards but that is ok as I am a archery hunter and tend to see more Elk at 40 to 100 yards in the thick trees. What are your thoughts on this? Thanks
Thank you sir! I always was told weight and never about length. And when you mentioned that a lightbulb went off in my head. When people say their gun likes a certain weight except for "x"brand weight" or like a different weight with different brand. It could be that a certain brand and different weight than "x" but same length.
That's very often the case, and is especially true with non lead bullets. Lead is considerably more dense than copper alloy bullets, so an alloy bullet of equal weight can be much longer. That's why many heavier non lead core bullets have a ballistically inefficient rounded ogive and/or point, to reduce their length for a standard twist barrel.
I like listening to you because you remind me about an American virtue, perhaps it is thriftiness, perhaps it is frugality, perhaps it is modesty, or being economical, whatever it is, it is avoiding hubris. We don’t need to be arrogant we don’t need the armor of King Saul. It’s OK to be King David, and I’m sure eventually he had some armor but I think it was appropriate and tailored to him and his needs. It wasn’t to much or too little it was just right. If other people are doing it as the common bread and butter, it’s probably because it’s a good idea, at least when it comes to technical stuff like this.
Thank you for your dedication also this particular subject is of interest to me and I watched a program and also saved it thank you very much sir and God bless you✝️
Thank you so much for this. Ties in very nicely with with my last question on one of your other videos about heavier bullets being happier in my 308 remington 7600 (22", 1 in 10"). Really appreciate this video.
Funny thing is you have an ad before your video for a super duper high tech scope with wifi, no less, and you are a back to basics Weaver K series guy!
Another very informative video. Thanks. Please think about doing a video on issues with some Rem 700 trigger problems. Concerned about safety problems, I'm sure you know what wete talking about.
I have owned and shot firearms for over 50 years, this presentation is the most complete explanation covering both the theory and practical sides. I just subscribed a few days ago discovering the channel quite by accident , what a treat, no BS , NO HIP SLICK AND COOL , just cogent well presented discussions. Thank you.
yonny1954 and no annoying loud music or swearing
@@ivobiancucci4528 Yes, I hate loud obnoxious intros and exits that wake the dead. I complained to presenter that I really liked about his loud music, that added nothing to the content but woke my wife. His response, "screw you". OK
yonny1954 Yes, he's the best. No rock music or shoot 'em up intro. He's not a slave to any brand. No infomercials here. He does need some tattoos and one of those Robert E. Lee beards though! LOL.
Captain has changed the way I shoot, changed the way I reload, deleted the way my wallet gets spent on useless junkie products, the way I clean my guns and preserve my guns, ALL for the better, with each of his videos! What he knows and shares will carry on and on. The truth is the truth! I'm very grateful to him and commenting fellow subscribers.
Its a treat that he posts on youtube also. Most of these salt of the earth good guys dont want anything to do with tgis platform.
Love your channel Captain. You've got this 34 year old hooked on your knowledge.
Been making barrels for 42 years...and I can be buffalo'd by all manner of things. Rifle barrels aren't one of them. Really nice to hear a well spoken, well informed gent who lays proper information on the line. Ya' nailed it son..!!
There are SO many "gun experts" out there who are so grossly misinformed, and then pass these misconceptions on to others...its sickening.! I watch many of these videos scheptically..waiting for the nonsense to start. YOU are a breath of fresh air..!!! A well informed gent who properly phrases "gun speak". Definately not your first rodeo.! Thanks for helping the average neophyte out there. I've dealt with far too many who are genuinely clueless. Lets hope some of the info you're imparting sticks with a few of these guys.! Keep it up..! Made me smile......! Regards...
Thank you for that. God bless.
Are you an old gunsmith.?? You've done your homework. Ex- military..? Just curious..?
I'm 65-years old, been around firearms all my life, and learn so much more about firearms from your channel. Wishing you the Best and Thank You. Alaska John
Someone that wants to share his depth of knowledge without any strings. Thank you.
The whole time I was watching, Proverbs 18:15 was going through my mind which says, "The heart of the prudent getteth knowledge; and the ear of the wise seeketh knowledge". I know where to come when I seek firearm knowledge! Thank you for giving your time, knowledge, and wisdom. I have learned more about shooting equipment from you, than anyone else. That also goes for my wife and my daughters; they feel the same as I do! May God bless you in abundance!
This man knows guns inside and out,thank you sir
I appreciate your videos because I learn so much. They are in a class by themselves. Thank you.
I'd send you money for the knowledge you've shared with us; if I knew where to address it..
Hello Sir,
Thank you for your gift and your time.
Nothing better on a Friday night than putting more valuable Gunblue knowledge in my memory banks
Take care
Rick Mansberger
ps. Hi Benny
There is such beauty and elegance in mastery. Absolutely beautiful how you masterfully articulated this topic. A true master.
Thank you for making the complex still complex, but understandable! I appreciate the effort that you put into your videos, and your ability to make me understand the processes, without just telling me what I want to hear. Like me, you're old enough to remember the Memorex commercials with Ella Fitzgerald. You are the real deal, you are an original! Too many people are running around the Net repeating what they hear with no understanding of what they are talking about. You're an educator! Please keep up the hard work! Your efforts are not going unappreciated. Thank you and......well, you know!
Wow that was an excellent presentation! I really liked that it had no annoying music as some others stated. Thanks for showing how to measure the barrel twist too. It was all interesting!!!
Someone who knows what he is talking about ,no stupid background music /noise and strangely an American who talks on subject and not a sales spin ,..refreshing and others I hope will follow your example .
I've been into firearms about 50 years, I still learn new things every day about the physics of the bullets.
I want to hang out with this guy. Hero level knowledge.
Amazing - you appear to just switch on the camera, stand in front of it and give an incredible, fascinating lecture without notes or prompt - as if you were a college Professor! If you haven't written a series of books on shooting, you ought to seriously consider doing so. Many Thanks & Best Wishes from the U.K.
This man is a encyclopedia of firearms. Learn much from you.
Gotta love this guy. I wish I could personally go to the range with him. Please keep them coming. Cannot help but learn something each time. Thank you.
Nice to have a subject explained concisely with an eye towards practicality. Thank you sir.
I've been watching you for a good long time now and occasionally return to selected videos such as this one. You are a treasure and wealth of knowledge. I appreciate also, you are a man of God and your morals are consequently golden.
Great teacher...one of the most valuable and educational channels on the whole of youtube
Dang! How you don't have a million subscribers is beyond me, thank you so much for sharing your extensive knowledge and expertise, it is not only valuable but captivating in its interest. Salute.
I call this applied engineering which absolutely is more practical and truthful than other methods.
You have answered every question in a half hour that I've ask others about in the last 20 years.
I was literally glued to my android listening and taking notes.Thank god I found a channel that was recommended to me by Utube. You have a new fan. God bless.
This is one intelligent gentleman!
What a brilliant video!!! I could listen to this guys voice all day!
Last time I heard a guy like this, I was talking to a gunsmith who had been building, repairing and shooting firearms for over 50 years. Thank you, sir.
Love your videos. Thanks for producing them.
GunBlue490, I asked this question of you regarding a .243 in another video, and after you answered, the implications of shear force on lighter thin jackets were clear to me. My Ruger target .243 with 1:9 shoots better using a 70 gr than a 100 gr, but only marginally so. It would not affect a hunting situation should a 1:10 be present in a hunting .243 rifle. I think, after reading many forums the last couple of years, you are exactly right in the description of use for .223 and heavier, longer bullets. Also a trend is now to the 300 blackout where individuals are shooting subsonic 220-240 grain bullets and looking for a way to stabilize these heavy bullets. I have noticed questions on the forums even regarding subsonic or reduced loads for .308. Just as you mention Remington changing the twist for the hunting applications of .243, perhaps the trend for the 300 blackout group is influencing the questioned need for faster twist? Your answer is spot on....individuals should ask themselves what their intent on owning the firearm is. Thanks for the explaination!!!
Fantastic information , will recommend this video to all my friends. Wish I had your teachings when I first started learning to shoot. You are very much appreciated and thank you.
This guy is the real deal. No BS and a wealth of information like no other I've ever heard. Like going to a "firearms university". I have been around guns for 50 years and have learned more in the last few months than I thought possible. These videos should be a requirement for anyone working in the gun or ammo department in any retail store. A true learning experience and a pleasure to listen to. Thanks, John Torian
Outstanding video. You really know the art! I love learning from what you have to share. Thanks a ton. This is a video worthy of watching about nine times!!!
This is by far the best explanation of practical aspects of rifling twist rates I've heard.
ive been shooting for years and have shot many different calibers. This man knows his stuff!!! i find myself looking forward to all his videos. I'm learning so much from you sir and i thank you!
God I love this channel. Learning heaps. Thank you sir.
Gunblue490 thank you again for another very informative video sir looking forward to more great advice in the future
Do you know how to message him. I've done it once and he was very quick to contact me back but I don't remember how.
Robert Rich Click on the 'About' tab on this channel. Directly next to the little flag symbol is the message icon.
Like??
asking pertinent questions and you'll learn even more....
I enjoy learning from your experience. Its a pleasure to have someone explain complex subjects without sounding complicated. Thank you sir.
Great information as always! We love seeing your channel grow day by day. May God continue to bless you and this channel. And so true about what's popular. In general we typically don't do trends whatsoever. We'll see you on the next one...
well all i can say is to bad i didn't find this guy years ago when i purchased all the parts to build my AR 15. back then like he said most everyone was saying 1:7 twist was the way to go an maybe it still is for a 16" barrel shooting 55 gr. and 62gr green tip 5.56 ammo. wish i knew now. i hope it is as o'm not going to go and buy another barrel just to get a 1:9 twist rate or something like that. anyway it was really great to listen to him explain twist rate and what happens to bullets this far out or that far out. best thing is i could listen to him talk about this stuff all day, thank you sir.
What a wealth of knowledge this guy has! Loved every word.
Thank you for sharing your knowledge on firearms, I have learnt alot from you and I will definitely share your knowledge with others. Thank you sir.
I understood more of this video. I may still have to watch it again before I try to move forward on other parts of the rifle.
So polishing out all those scrapes down the inside of my barrel was bad? Thank you again for sharing your knowledge and wisdom.
This guy really knows his stuff! Thank you sir
All true and correct however, a 125 SST loaded in a 308 under 4895 (light load) or Varget (heavy load) are killers on Texas Whitetail out to 200 ish with a 1/10 twist.On the other end, I've been successful with 220 interlock round nose under Varget out of the same rifle while on in your face pig hunting adventures in the thick east Texas bottom lands.Gunblue and Hickok are by far my favorite you tube channels. Thanks for all ya do.
Best quote from this "slow, luxurious twist"... awesome. 15:55
Thanks to this I have a fantastic new way to view my 22-250.
For those extreme ranges that don't apply to most shooters it is possible to have to much gyroscopic stabilization relative to aerodynamic stability because it fights the bullet aligning its self to the relative airflow as it gets late in the trajectory arc. Very corner case but it is there just the same
This is the absolute best gun channel on RUclips. I only discovered your channel yesterday and have already watched several of your videos. Reminds me of listening to lectures in college. Thank you for your service and sharing your knowledge. I, for one greatly appreciate what you do. Subscribed
Such knowledge here! GunBlue490 is a treasure!
If the diameter and the density of the projectile does not change, the more mass you have, the longer the projectile.
Longer projectiles are more likely to tumble because the center of gravity is further from the point of the projectile.
This means more revolutions per second are required to get the proper gyroscopic spin, but increased velocity increases revolutions PER SECOND.
The other means of creating more revolutions per second is to increase the twist rate for the same distance covered per second.
A .223 with 60 grains with a velocity of 2000 feet per second with a twist rate of 1:12 will turn one rotation in one foot at 1/2000th of a second, yielding a RPS of 2000 using 533 ft/lbs of energy.
A 22LR with 60 grains with a velocity of 1000 feet per second with a twist rate of 1:6 will turn two rotations in one foot at 1/1000th of a second, yielding a RPS of 2000 using133 ft/lbs of energy.
They will both have the same amount of gyroscopic stabilization with the same projectile mass, but at different velocities.
A good example of this is the Aguila SSS 60 grain subsonic cartridge out of a 1:18 barrel. It will begin to tumble the moment it hits resistance. With a 1:7 twist rate, it is stabilized.
A .223 would not tumble with a 1:18 barrel because its velocity is near 3000 fps.
REGARDING "TOO MUCH RPM," the bullet is sized to the grooves; NOT the bore. A .357 has a .350 bore. So the bullet gets swaged to the bore size. This makes sure the bullet "obturates" or fills up the barrel to seal the gas pressure instead of wasting energy. The barrel does not give, so the bullet must. If the bullet metal is not soft enough to swage, it will fragment. It is NOT to much RPM or even pressure. It is far too little give in too short a space of time, not gyroscopic centrifugal force.
Sir, so much knowledge sharing and in the most didactic way, I learn so much listening to your detailed explanations. God bless you too
Your knowledge is vast. Thank you for sharing with us. Comes in very handy for us hand loaders.
A fountain of practical knowledge, superb instruction and guidance
Thanks sir, America stands tall thanks to men like you who have created its legacy forever. May God bless you.
I'm an average type of guy and I've never really given any consideration to the rifling twist other than the actual condition of the lans and grooves. So thank you very much for confirming my belief that to us average shooters it really doesn't matter. Best regards.
thanks for the tip about squaring the target to the shooter then checking the circularity of the bullet holes. I'll do that very thing when checking the tuning on my bow or crossbow setup, but it never occurred to do that same thing to check a rifles "tuning". good advice, please keep it coming!
Great advise as always. I have buddies that chase trends like crazy. For example if it does not say magnum on it it's just weak. Instead of waisting my time trying to explain it to them in just going to start sending links to your videos. Thank you for the time and effort you put in your videos. God bless!
Thank you for the clear explanation! You should use the 220 Swift as an example, when first introduced by Winchester (1935) the factory load was with 46-48g bullets so the twist was (and still is) 1 in 14". I have a Ruger M77V with 26" heavy barrel and would love to shoot some of the 70g+ high BC bullets for longer ranges...but they won't stabilize. The small .223 Rem will handle the big bullets but the giant Swift won't.
Your are a wealth of information and knowledge thank you for always sharing with great videos
Novice gun enthusiast here...Thank you for this VERY informative tutorial!!
Great video on twist! Especially the example you provided with the 22-250, typically having a slow twist, yet providing extreme accuracy with short 55 grain bullets. Regarding high velocity bottleneck rifle cartridges of .22 thru 25 caliber the fastest twist intended for longer bullets doesn't always determine accuracy, bullet integrity and even stability in some instances. Thank you.
Very informative thank be you.
Excellent, thanks for your time and effort.
Always great information.
Im a new subscriber! And have been learning a great number of things from your content. I live in NE Washington state. With nothing else to do besides watch it snow .And am new to reloading so thank u!
Thank you for the information you share.
Thank you. Your video cleared up several of my problems. Great video
Terrific, educated, experienced information and presentation.
Wow. The information in this video is unbelievable. Thank you.
You need to write a book, as well as a reloading manual with your favorite recipes. I would be more than happy to pay for such books from you, and I'm confident I'm not alone.
Very good information put in a way that we all gain practical application knowledge. Also if your a hand loader most loading manuals use standard twist rate barrels as the basis for their loads for a particular cartridge.
Thank you for sharing your knowledge. This is one of the best videos I have seen on this subject matter.
Love your channel! I'm so glad i came across it! So interesting! Thank you sir!
Sir, your presentations are akin to an University Course. Clear, informative, precise.
My old (i purchased it used in 2017) Savage 99E chambered in .250-3000 tends to drive me just a bit nuts when it comes to bullet weight and type/design v powder charge v rate of twist. I love the rifle and I'm fascinated, maybe even a bit obsessed, with the cartridge as it SEEMS to be every bit as "good" as any .243 and many .270s I've had the occasion to shoot and/or hunt with. I've aware of the, sort of messed up, history of the round but I've accepted the challenge and hope, during the 2018 deer season, to make it my primary deer rifle while keeping my shots to around 200 yards at most when firing 100grn JSP rounds. I also plan on using the rifle and cartridge combination to thin out the coyote population when the opportunity presents itself while using the same ammo as I intend to use on deer. Having said all that, I'm a tad confused, thanks to some conflicting information I've found in print and online, as to the "best" bullet weight, design, and rifling twist for the .250-3000/.250 Savage. Since I have no plans in this lifetime to hunt anything bigger than South Eastern whitetail deer with my old Savage lever gun could you possibly suggest a "every man's" bullet and powder combination that will be usable, and dependable, on both deer and coyotes? If you do not feel comfortable providing such information online I completely understand considering the world we live in today. Thanks for the video though it's a year old now.....And I have no idea how I missed it the first time around. Take care and keep great videos coming!
Try a 25-06 off the shelf with off the shelf ammo and you will be surprised how it meets your objectives, and remember that even a key-hole round kills. Precision is repeatability such as a tight group several inches OFF target, but accuracy is hitting the target even in a shotgun pattern, but ON target.
Thank you! I always learn something from your videos!
Thanks for the information. And for putting in a simple way that it is easy to understand.
I really like this video and the subject matter. I wanted to ask about barrel vibration and the possibility that it could match up with the bullet rotation speed. I always suspected the two were not even close, but I don’t know that. I assume a bullet leaving a barrel at 3000 ft/sec with a 1:12 twist (or one twist per foot) would spin at 3000 rev/sec. I don’t think the barrel’s natural mode of vibration would be any where close to that, but maybe there could still be a harmonic match up. One place I’ve been suspicious is with one of your favorite guns, the mini 14. Ruger changed from a 1:7 twist to 1:9. I was guessing it had to do with a lot more 55 grain ammunition being fired from the gun and matching the barrel design better to the 55 grain bullets. I’ve been meaning to see if my old mini 14 shoots a little better with the heavier bullets, not that that I’m unhappy with the 55 grain results. Great video.
Thanks for sharing your knowledge of twist rate and how simple it is to get twist rate..Good stuff...
As always a great dissertation, thank you.
Full of firearm knowledge and wisdom! Thanks so much!
Excellent information Sir !!
Great video. Thanks for sharing all of your knowledge.
Great info! My father likes using heavier bullets when hunting big game for stability and humane kill, plus Gotta be loaded for bear, I recently built an A.R. 15; 16 inch with a one and seven twist because I figured faster twist would be better for most 5.56 and 223 loads. After deer hunting most of my childhood with a 30 cal rifle all A.R. 15 loads looks small to me
Great video, you clarified a whole bunch of things for me there
With only one thumbs down, it only proves that we live in a free democracy and we have the right to choose to remain stupid.
I learned more about rifling twist in your video than I have in the last 10+ years of RUclips videos, combined. Maybe I've been watching the wrong videos?
So what I gather is that there is a myriad of variables, but not very off the wall. I loved the part when you said boat-tail bullets have yaw the first couple of hundred yards, which is true, and can be seen in short range paper targets, but the accuracy at range far exceeds the minor yaw that if everything is consistent, it is practically pleasurable and unaffected to accuracy; similar to surfing with a shark underneath waiting for you to fall, if you don't think about it, it doesn't affect you.
In Aberdeen Maryland, as an armorer instructor, I shot a ten shot group through a tricked out M-14 (7.62 "total metal jacket" not full metal jacket bullets) through the same 3/4 length key-hole at 25 yards and a sub-MOA at 1,000 yards, with the same load. Your statement brought back memories and a flash from the past. Those were lathed bullets, very expensive and experimental at the time that not even Carlos Hathcock was supplied with them.
Great video, liked and subscribed.
Cut rifling, Button, other?? Barrel harmonics? Bedding (how/where), PSI and barrel wear, Penetration not a function of speed but bullet design, rise of magnum Craze, why 30/06 is the best (oh boy). Well you get the idea. Would love to hear your views on these 😊
I just got a smoking deal on a PBB barreled action:
Mesa Precision Summit Ti LA
PBB 18" CF 3R 1:12
This is my first "varmaint" rifle and id love to talk to someone who has experience in loading and data 🙏🏻
Your videos are like a flash light in the dark corners of ballistics. You made me realize the relation in twist rate, bullet velocity and resulting RPM all in the context of chamber pressures. A long twist rate is not necessarily a slow twist rate since I might want a higher velocity for the intended task, which a short twist rate might not allow since it raises chamber pressure. Your channel is the only one with this angle. Great stuff and thank you sir.
Kine Vision
You revealed to me that "slow twist" is sometimes misinterpreted to imply slow velocity. I was not aware of that unrelated connection that may be perceived by some. I may do a part II that illuminates that issue. This is what is meant by the saying; "I did not know what I did not know". Thank you.
Well explained, Sir!
VERY INTERESTING INFORMATION,NICE AND EASY
Awsome video I learned a lot of info thank you. I do have one question though. I have a Christensen Arms mpp .308 with a 12.5'' barrel and a 1:7 twist. I purchased the Hornady CX 180gr bullets but wondering about a powder and charge. I'm thinking Varget powder. This is for an Elk hunt. I know my distances will not exceed 300 yards but that is ok as I am a archery hunter and tend to see more Elk at 40 to 100 yards in the thick trees. What are your thoughts on this? Thanks
Thank you sir! I always was told weight and never about length. And when you mentioned that a lightbulb went off in my head. When people say their gun likes a certain weight except for "x"brand weight" or like a different weight with different brand. It could be that a certain brand and different weight than "x" but same length.
That's very often the case, and is especially true with non lead bullets. Lead is considerably more dense than copper alloy bullets, so an alloy bullet of equal weight can be much longer. That's why many heavier non lead core bullets have a ballistically inefficient rounded ogive and/or point, to reduce their length for a standard twist barrel.
Sensational and very well put. I Had no idea that it works like that. Excellent thank you
Enufzed
Downunder
I like listening to you because you remind me about an American virtue, perhaps it is thriftiness, perhaps it is frugality, perhaps it is modesty, or being economical, whatever it is, it is avoiding hubris. We don’t need to be arrogant we don’t need the armor of King Saul. It’s OK to be King David, and I’m sure eventually he had some armor but I think it was appropriate and tailored to him and his needs. It wasn’t to much or too little it was just right. If other people are doing it as the common bread and butter, it’s probably because it’s a good idea, at least when it comes to technical stuff like this.
Great Video!!!
Thank you for the education Sir
Thank you for your dedication also this particular subject is of interest to me and I watched a program and also saved it thank you very much sir and God bless you✝️
Thank you so much for this. Ties in very nicely with with my last question on one of your other videos about heavier bullets being happier in my 308 remington 7600 (22", 1 in 10"). Really appreciate this video.
What a wealth of knowledge, Thank you Sir.
Funny thing is you have an ad before your video for a super duper high tech scope with wifi, no less, and you are a back to basics Weaver K series guy!
Excellent presentation . Congratulations.
Again thanks for a concise explanation on the topic, really enjoy your vids,
Thanks Paw-Paw👍👍🇺🇸🇺🇸🇺🇸🇺🇸
Another very informative video.
Thanks.
Please think about doing a video on issues with some Rem 700 trigger problems.
Concerned about safety problems, I'm sure you know what wete talking about.