THANK YOU!!! The discussion (around 40 minutes in) about the extreme spread and standard deviation velocity numbers really helped me calm down about my own loading expectations.
AWESOME! I can't believe that you actually picked my comment as one of your conversation topic questions! Very appreciative......but I'm not shaving my head 😂! That has only happened one time-Semper Fi!
First, a sincere thank you to all of you for taking the time out of your busy schedules to provide and share your invaluable knowledge in these podcasts. Second, I may have missed it in one of your past episodes, but have you ever discussed the variables that come into play when cartridges are necked up and down from parent cases? For instance, what changes in velocities, pressures, different powders, etc. Thanks,
I have listened to most of your podcasts in the last year. I feel I have learned more about reloading than I did the last thirty. Powder,bullets and barrel combinations importance ect…
I like these podcasts for reinforcing various things I've learned over the years, and shedding some light on the variables in guns and ammo that reloaders & mfgrs encounter along the way. Sometimes I find a better way to describe something, or maybe a variable to point out that illustrates a problem better than what I was using previously. The nice part, is that the source is a proven, valid resource to use.
This podcast helped me understand the benefits of modern cartridges and how bullets work. You might say I was a little “fuddish” before you guys showed me light. Thanks! 👊🏼 Technically not true on the suppressor wait time question though. Ive been "batch approved" twice now. I ordered multiple cans at different times and had them all approved with the first in line. My average wait time has been 7 months but I have ordered a can as long as 4 months into my approval.
These Podcasts are really useful, thanks. It would be really useful to get a podcast on why bullets what appear to be very similar bullets in weight, design and type can have significantly different load profiles.
At around 29:00 Jayden discusses the variability of the barrel and how it plays a significant role in if a given load works or not. With that in mind, how does Hornady develop factory loaded match ammo to shoot well in just about any rifle?
So; with this ES and SD stuff, as Miles said at the 41:30 mark in the video; the greater the shot string, the greater the probability of repeatability,(perhaps in my mind, recognizable) consistency; leaves me thinking, unless you are completely cleaning the barrel and action between each individual shot; are we witnessing the aggregation of the tiny incremental increase of [throat-bore-barrel] tightening/buildup? So let's think about it like this. A small sample size is like a Torpedo Level. A medium sample is a 4 footer and a Large is an 8' level. I can use a Torpedo level on a 4' pipe and trust the results. As the length of pipe grows larger, that small sample becomes more and more inaccurate in relation to the accuracy of the other end of the pipe. To me, it's very similar to a slope calculation. The barrel fouling is growing. It reaches a point where the freebore is "full" so it grows into the lead and further through the bore. It seems like, that gradual tightening influence is visible in larger sampling. Then of course, at some point fouling stops building and may even begin to breakdown/erode 🤷🏼♂️ The point of all my seemingly random BS 🤔 is that; If you tell me a 100' pipe is level, and your instrument is a 9" Torpedo level, well ; you have a greater than 99% probability of being wrong 😐 The error margin is outside of the test. Conversely; at some point, the data set/sample/testing (length of your level) became or will become irrelevant because you've already achieved the results you wanted / reached the end of the pipe. I'm sure, I have over simplified this and will be thoroughly grievanced for my complete lack of knowledge and understanding 🤣🙄🤦♂️ Anyway; test all you want, grow your database and rejoice in the group information you gain. 🥳🤙 P.S. I absolutely love this podcast. I have nothing but respect and appreciation for you guys and the work you're doing ‼️ Nothing I've written, should be taken in a negative connotation and certainly does not reflect any personal feelings ‼️💯 I really do enjoy listening and watching and learning from you ‼️Hopefully one day I'll make it to a show and have the chance to thank you in person 😊
Thanks for the great podcasts, guys! On the topic of terminal performance and energy transfer, I'm curious how much energy goes into deforming the projectile and if there's a significant difference between monolithic and cup- core types. Do you have the FEA capabilities at Hornady to form some ideas on this?
Another great podcast. I found your touching on the conversation around shot string numbers and reliable SD and ES taking me back to the earlier episode and I recalled a question I asked myself then. Have you estblished a baseline or approach that you follow when you test loads for letting the barrel cool between shots, have you found barrell temp to be a significant consideration?
I'm shooting your CX bullets in the outfitter ammunition for 300 win mag and have had great results with that. I did hear somewhere that monolithic bullets seem to respond better to having a slightly longer throat jump to the lands. Is this something you've seen it can elaborate on?
I use your frontier 75gr 5.56 in my AR and I’m happy to say my SD out of 20-40 rounds is always around 12-15. I can get a 2” group at 100 yards with 10 shots and I think I can be happy about that. Y’all are awesome!
I'm a new subscriber and I have been slowly picking my way through the episode library and I appreciate the time and effort you guys put into this podcast for us. Is there an episode that addresses primer availability issues?
I can not remember just where I read/watched the story about static electricity causing pressure signs ands well as higher velocities, but the story goes that - shooters making their rounds up from the shooting bench at the range found that with the same charge weight identical to the ones they made at home, and had just shot previously, would end up having higher pressure signs and velocities. They reached out to a respected guru in the gun world for advise and he got in touch with the powder manufacture. They replied back to roll the cartridges around on the bench for a bit to release the static electricity from the rounds. So the shooters did so, and velocities and pressures returned to the same as the ones that they loaded at home. It was said that the rounds made at home would get any static charges dissipated from jostling around in the ride on the way to the range, and the ones made at the shooting bench, at the range, being shot immediately did not have time to release the static charge. Further in several reloading manuals that I have (as well) state that static electricity is a dangerous enemy to the hand-loader, and can lead to compromised integrity of the ammunition, due to dangerously higher and erratic pressures. And that using plastic powder dippers, weigh pans, tricklers, funnels, and loading blocks (including [Formica] plastic laminated loading benches) will induce the powder charges with static electricity. I know that low humidity plays a part so a humidifier would help. And that it is best to keep the powder stored and the reloading room around 50-60% humidity according to Norma’s reloading manual. So I am wondering, what is y’all’s take on this - using cheap plastic reloading tools, as opposed to using metal dippers, weigh pans, tricklers, and funnels not to mention wooden loading blocks and having a real wood reloading bench top? And going so far as to ground the reloading bench and press for those of us who are blessed with a window in our reloading room to test our loads right then and there? And the correct humidity levels for powder storage?
Great episode. Regarding the bolt issues withe the 22 ARC bolt face, I’ve shot 6.5 Grendel, 22 Grendel, 6mm ARC snd now 22 ARC for years using different bolt actions and at least half a dozen AR bolts and never had any issues after thousands of rounds. I think the bolt face was a problem early in the lifetime of those cartridges that has mostly been resolved. It looks like the myth will never die though. Maybe others have had a lot of problems but I personally haven’t seen it for what that’s worth.
I've shot grendal and never had an issue. I remember hearing things when i was debating on building one but never seen an issue with mine or any others i know .
I have a good question…. I recently bought a 7 prc with a 22” barrel the precision hunter ammo on the box shows a velocity of 3000. Many people including myself are getting way lower velocities (2820 to be exact). What barrel length did you use to get that number and is that velocity number on the box not correct?
How about case head expansion at the case web? Vernon Speer used 0.0005" as too much pressure, you need to measure your case before and after with a very accurate blade micrometer.
QUESTION! I have really enjoyed everything I have learned about ballistics and everything precision related on this podcast! I have also really enjoyed all of Bryan Litz’s books. However I am Hornady guy, does Jayden have plans on writing any books?
That was one of the reasons I asked my question, I'm doing a load for a friend who had a 20" barrel remington 5r and it won't group anything under a 180gr flat base worth a flip.
15:44 is me, lmao - So it's very easy to test. Don't use a Hogden Extreme Powder, and go out when it's 0* out, put some ammo in your pocket with a "hot hands" and heat the ammo up. Now shoot some cold rounds and the hot rounds. You will see an extreme difference in POI. The outside temp never changed... which just proved my point. You guys are mostly right, but... you missed this one. Go give it a try and see what I mean. This was something basic I learned on my own, I just thought everyone knew?
I have a question. Have you ever tested the OBT theory with large sample sizes? I've listened to a few of your podcasts, but haven't heard anything about this topic specifically. Thanks.
It might be useful to explain the difference between "modern match chambers" and older chamber designs (especially taper-only, forcing cone designs like 300 Win Mag, 30-06 and 270). A diagram showing the differences would be very helpful. It would help to explain why this allows the newer chambers to be less sensitive to bullet-jump variations and tend to be more forgiving when trying to find an accurate bullet/powder combination. This was briefly mentioned in this podcast, but probably was not detailed enough to register with many listeners who are not familiar with chamber and reamer design and tolerances.* It is likely that a lot of people might not realize that a bullet not held in precise alignment as the rifling is engraved can take the rifling asymetrically and actually be slightly misaligned with the bore as it travels down the barrel (in-bore tilt). It might be helpful to describe some of the ways this can affect the barrel vibrations and bullet trajectory, especially lateral jump, etc. FWIW, I suspect that many people don't fully understand the terms like "freebore" and "forcing cone" used in this podcast. To make matters worse, the use of the word "freebore" has changed somewhat over the last century or so. It once often just meant "oversized area of the bore prior to rifling" in cartridges like the 30-06, 270 and 303 British that only used a forcing-cone-only chamber design. That is different from its current usage of "VERY-slightly oversized cylinder prior to taper into the rifling". Thanks. *I think that Dave Emery said something like "freebore about 100 thou length of half a thou clearance", which is gibberish to many, especially metric users.
When you are testing different powders on a bullet barrel combination, do you pick your initial load on each powder by bullet velocity in the loading manual or is there a different metric?
This is my second question I am in the middle of load development for a rifle, and I had some used brass and some new brass. I know some folks who will fire form their brass before loading. If I'm loading partly with used brass and partly with new brass, what, if any, effect will that have on my dispersion downrange?
Dispersion, very little. MV, however, we see a pretty consistent 10-15fps shift from virgin to fired (fired is faster). After the first firing it levels out.
I have been described as a spelunking-grade rabbitholer, and as such I love the in-depth information you guys provide. Here's a question that might interest you: there are currently a number of research programs going on in your country proving that it is possible to reduce the magnitude of the sonic boom of supersonic aircraft. I am wondering if these technologies miggt influence bullet design in the future?
Standard deviations only belong on Bell Curve statistics. Skewed distribution statistics are not well represented by Standard deviations. In my opinion, ammunition performs as a skewed distribution.
I generally agree about the small sample sizes not being valid for ultimate precision. But if you shoot a 3-shot group and it's already worse than your expectation, is there any point shooting more? It's never going to get any better (unless YOU messed up in which case all bets are off anyway).
Been binging your podcasts today and on the reloading one,it seemed like everyone cringed a little bit when the 308win was mentioned. What would make that caliber different or more difficult to reload with accuracy?? 😊
question on reloading manual data because y'all made me think of it near the end: if a high load listed is say 3000 PSI below SAAMI max, is that related to accuracy? Jayden mentioned how loads are not developed to max pressure, and I know that high pressures can degrade accuracy. If it truly is a "max" load but is below pressure limits, it makes absolute sense that accuracy is the reason. Or is there some other reason?
Usually whoever does the test data does it in increments and the 3000psi-below-max charge was the last one they hit before they went over so that's the one that gets published. I think we touched on it in the podcast but 3000PSI plus or minus is inside the typical ES of peak pressure even on decent ammo.
do you pay much attention to accuracy when load testing? I've seen some sources highlight one powder as most accurate, but I don't know if that's a separate test since I would think pressure testing would be a different setup from accuracy testing. @@milesn3173
@@jimmywilliams7876 Not particularly. I remember seeing that information listed in older manuals from other companies, but we've seen so much variation gun-to-gun it would be a data-collection nightmare to provide any sensible/reliable data on this. What shoots well in our barrel may or may not in yours. There are certain combinations out there that tend to work better than others but that information usually takes tens to hundreds of shooters figuring it out over a long time. There are still plenty of exceptions to those "sweet spots", too. We don't have the staff or frankly the barrel variety for that. The same folks that do the reloading data also test production ammunition full-time.
thanks for all the work. I now shoot at least 10 rounds of any changes in my loads just to note any change, and 20+ to check accuracy thanks to you and Jayden. @@milesn3173
I have a question. I hope you find them in the comments. Barrel, powder, bullets. I have a rifle that I just can’t find a load that I’m happy with. It’s a new barrel/cartridge. I’ve try several different bullets(all close to the same weight) but only one powder. Should I do a complete ladder test with different powder or just pick a starting load and move on if it doesn’t shot well. Also should I try different bullet weights. I have plenty of twist and for the heavy for caliber bullets I’ve tried. Thanks love the podcast and as you’ve said really enjoy the technical info ones.
Why when doing load development,let’s say 5 shots per charge weight and you add all the velocities for the specific powder charge together the total speed calculated increases per charge weight but suddenly you will find a charge in the string that’s speed is slower than the previous charge.
QUESTION - why does hornady use 24" test barrels and use that for velocity on the ammo boxes? especially when 99% of hunting rifles are shorter and NOT 24" barrels?
@@jjgriffin3275 lol cherry picking four rifles. And besides it really doesn’t matter what they use. If you read they used a 24” and you have a 22” you can expect approximately 50fps less in velocity. Just gotta know what you’re doing.
I keep hearing questions on seating depth, but none have answered this one nagging question in my head. If seating depth is not very important, how important is seating depth consistency? If consistency is important, what's the tolerance? If I'm loading, and my seating depth changes in the range of +/-.002" is that okay? Do I need to find a method that is more consistent? Am I worrying over nothing?
Hey love the pidcast, but sometimes those squishy mouth noises get picked up by those super close mics. Some of the episodes are hard to listen to l. I don't know if you can just back them off or run the audio through a filter.
Q: were can I get Subsonic 7.62x39 ?.......A: we're sorry all circuits are busy, if you hold on the line for 2 more years a box of 1 will be available....🧐
HERE'S MY QUESTION. I am a southern and northern AZ hunter - Coues deer and elk. I shoot only Hornady factory ammo, traditionally SST Superformance. Recently ELD X. Please explain - new CX versus ELD-X
Now gentlemen slay the dragon of, do aspects of brass effect dispersion? Flash holes, primer pocket uniformity, neck tension, internal neck finish, does neck turning help with a factory chamber ect? I’m a big believer in quality brass making a impact on accuracy. A little fuel to the fire maybe….. ruclips.net/video/VanQm9-RZxs/видео.htmlsi=9rOs9Q4UcEaEwrVK Please continue forward!
THANK YOU!!! The discussion (around 40 minutes in) about the extreme spread and standard deviation velocity numbers really helped me calm down about my own loading expectations.
Man! I get so excited when I see a new episode! Thank you guys for these podcasts
Thanks for watching!
AWESOME! I can't believe that you actually picked my comment as one of your conversation topic questions! Very appreciative......but I'm not shaving my head 😂! That has only happened one time-Semper Fi!
First, a sincere thank you to all of you for taking the time out of your busy schedules to provide and share your invaluable knowledge in these podcasts.
Second, I may have missed it in one of your past episodes, but have you ever discussed the variables that come into play when cartridges are necked up and down from parent cases? For instance, what changes in velocities, pressures, different powders, etc.
Thanks,
1:01:24 "The work bubble" I like that. Hope you don't mind if I start using that.
I have listened to most of your podcasts in the last year. I feel I have learned more about reloading than I did the last thirty. Powder,bullets and barrel combinations importance ect…
Thanks for tuning in!
Could Miles do an complete overview of his PRS gasser setup?
I know it's a pain, and you guys are very busy; so I just want to thank you for the Q&A sessions and please do more of them ‼️🙏🏼💯
Would be great to see an episode on the 25 WSSM. Thanks
I like these podcasts for reinforcing various things I've learned over the years, and shedding some light on the variables in guns and ammo that reloaders & mfgrs encounter along the way. Sometimes I find a better way to describe something, or maybe a variable to point out that illustrates a problem better than what I was using previously. The nice part, is that the source is a proven, valid resource to use.
Literally LOL on Jayden as your "drunk uncle" but his words are pure gold!
This podcast helped me understand the benefits of modern cartridges and how bullets work. You might say I was a little “fuddish” before you guys showed me light. Thanks! 👊🏼
Technically not true on the suppressor wait time question though. Ive been "batch approved" twice now. I ordered multiple cans at different times and had them all approved with the first in line. My average wait time has been 7 months but I have ordered a can as long as 4 months into my approval.
These Podcasts are really useful, thanks. It would be really useful to get a podcast on why bullets what appear to be very similar bullets in weight, design and type can have significantly different load profiles.
At around 29:00 Jayden discusses the variability of the barrel and how it plays a significant role in if a given load works or not. With that in mind, how does Hornady develop factory loaded match ammo to shoot well in just about any rifle?
WOOT WOOT looking forward to the year for the podcast!
Great elk story!
Thanks for listening
Another excellent podcast. Always learn something new from you guys. Thanks
Great to hear!
Very well received!! You guys do a great job. I listen to every episode
Much appreciated!
Happy new years!!! Please keep them coming. My top 5 favorite pod cast.
Happy new year!
Another episode filled with info - thanks.
You bet!
So; with this ES and SD stuff, as Miles said at the 41:30 mark in the video; the greater the shot string, the greater the probability of repeatability,(perhaps in my mind, recognizable) consistency; leaves me thinking, unless you are completely cleaning the barrel and action between each individual shot; are we witnessing the aggregation of the tiny incremental increase of [throat-bore-barrel] tightening/buildup? So let's think about it like this. A small sample size is like a Torpedo Level. A medium sample is a 4 footer and a Large is an 8' level. I can use a Torpedo level on a 4' pipe and trust the results. As the length of pipe grows larger, that small sample becomes more and more inaccurate in relation to the accuracy of the other end of the pipe. To me, it's very similar to a slope calculation. The barrel fouling is growing. It reaches a point where the freebore is "full" so it grows into the lead and further through the bore. It seems like, that gradual tightening influence is visible in larger sampling. Then of course, at some point fouling stops building and may even begin to breakdown/erode 🤷🏼♂️
The point of all my seemingly random BS 🤔 is that; If you tell me a 100' pipe is level, and your instrument is a 9" Torpedo level, well ; you have a greater than 99% probability of being wrong 😐 The error margin is outside of the test. Conversely; at some point, the data set/sample/testing (length of your level) became or will become irrelevant because you've already achieved the results you wanted / reached the end of the pipe. I'm sure, I have over simplified this and will be thoroughly grievanced for my complete lack of knowledge and understanding 🤣🙄🤦♂️ Anyway; test all you want, grow your database and rejoice in the group information you gain. 🥳🤙
P.S. I absolutely love this podcast. I have nothing but respect and appreciation for you guys and the work you're doing ‼️ Nothing I've written, should be taken in a negative connotation and certainly does not reflect any personal feelings ‼️💯 I really do enjoy listening and watching and learning from you ‼️Hopefully one day I'll make it to a show and have the chance to thank you in person 😊
Thanks for another great year of knowledge!
Our pleasure!
Thanks for the great podcasts, guys!
On the topic of terminal performance and energy transfer, I'm curious how much energy goes into deforming the projectile and if there's a significant difference between monolithic and cup- core types. Do you have the FEA capabilities at Hornady to form some ideas on this?
Another great podcast. I found your touching on the conversation around shot string numbers and reliable SD and ES taking me back to the earlier episode and I recalled a question I asked myself then. Have you estblished a baseline or approach that you follow when you test loads for letting the barrel cool between shots, have you found barrell temp to be a significant consideration?
I'm shooting your CX bullets in the outfitter ammunition for 300 win mag and have had great results with that. I did hear somewhere that monolithic bullets seem to respond better to having a slightly longer throat jump to the lands. Is this something you've seen it can elaborate on?
I use your frontier 75gr 5.56 in my AR and I’m happy to say my SD out of 20-40 rounds is always around 12-15. I can get a 2” group at 100 yards with 10 shots and I think I can be happy about that. Y’all are awesome!
I just received my new Hornady Product Catalog in the mail this morning and what a wonderful catalog it is…Y’all did a great job on it 👍👍👍😎😎😎
Awesome! Thank you!
Love the products and your information here. I cannot always agree on some, but it's cool to hear your viewpoints. 8) Need more .375 Ruger brass!!!
Thanks for watching!
Yes we need 375 ruger brass in monticello mn
I'm a new subscriber and I have been slowly picking my way through the episode library and I appreciate the time and effort you guys put into this podcast for us. Is there an episode that addresses primer availability issues?
The test is Jayden shaves his head and you check for the average views per episode change, either up, down, or no change. Need at east 20 episodes...
Yes! Must be a statically significant sample size 😂
I have reloaded for over 45 years and found that you need to find what your rifle likes, for components, and depths seating.
I can not remember just where I read/watched the story about static electricity causing pressure signs ands well as higher velocities, but the story goes that - shooters making their rounds up from the shooting bench at the range found that with the same charge weight identical to the ones they made at home, and had just shot previously, would end up having higher pressure signs and velocities. They reached out to a respected guru in the gun world for advise and he got in touch with the powder manufacture. They replied back to roll the cartridges around on the bench for a bit to release the static electricity from the rounds. So the shooters did so, and velocities and pressures returned to the same as the ones that they loaded at home. It was said that the rounds made at home would get any static charges dissipated from jostling around in the ride on the way to the range, and the ones made at the shooting bench, at the range, being shot immediately did not have time to release the static charge. Further in several reloading manuals that I have (as well) state that static electricity is a dangerous enemy to the hand-loader, and can lead to compromised integrity of the ammunition, due to dangerously higher and erratic pressures. And that using plastic powder dippers, weigh pans, tricklers, funnels, and loading blocks (including [Formica] plastic laminated loading benches) will induce the powder charges with static electricity.
I know that low humidity plays a part so a humidifier would help. And that it is best to keep the powder stored and the reloading room around 50-60% humidity according to Norma’s reloading manual.
So I am wondering, what is y’all’s take on this - using cheap plastic reloading tools, as opposed to using metal dippers, weigh pans, tricklers, and funnels not to mention wooden loading blocks and having a real wood reloading bench top? And going so far as to ground the reloading bench and press for those of us who are blessed with a window in our reloading room to test our loads right then and there? And the correct humidity levels for powder storage?
Great episode. Regarding the bolt issues withe the 22 ARC bolt face, I’ve shot 6.5 Grendel, 22 Grendel, 6mm ARC snd now 22 ARC for years using different bolt actions and at least half a dozen AR bolts and never had any issues after thousands of rounds. I think the bolt face was a problem early in the lifetime of those cartridges that has mostly been resolved. It looks like the myth will never die though. Maybe others have had a lot of problems but I personally haven’t seen it for what that’s worth.
I've shot grendal and never had an issue. I remember hearing things when i was debating on building one but never seen an issue with mine or any others i know .
I have a good question…. I recently bought a 7 prc with a 22” barrel the precision hunter ammo on the box shows a velocity of 3000. Many people including myself are getting way lower velocities (2820 to be exact). What barrel length did you use to get that number and is that velocity number on the box not correct?
In Miles we trust
How about case head expansion at the case web? Vernon Speer used 0.0005" as too much pressure, you need to measure your case before and after with a very accurate blade micrometer.
QUESTION! I have really enjoyed everything I have learned about ballistics and everything precision related on this podcast! I have also really enjoyed all of Bryan Litz’s books. However I am Hornady guy, does Jayden have plans on writing any books?
Love the podcast fellas, keep up the good work, I was wondering if anyone has an eta on 6mm arc 80 gr eld-vt loaded ammo availability. Thanks
That was one of the reasons I asked my question, I'm doing a load for a friend who had a 20" barrel remington 5r and it won't group anything under a 180gr flat base worth a flip.
15:44 is me, lmao - So it's very easy to test. Don't use a Hogden Extreme Powder, and go out when it's 0* out, put some ammo in your pocket with a "hot hands" and heat the ammo up. Now shoot some cold rounds and the hot rounds. You will see an extreme difference in POI. The outside temp never changed... which just proved my point. You guys are mostly right, but... you missed this one. Go give it a try and see what I mean. This was something basic I learned on my own, I just thought everyone knew?
I have a question. Have you ever tested the OBT theory with large sample sizes? I've listened to a few of your podcasts, but haven't heard anything about this topic specifically. Thanks.
It might be useful to explain the difference between "modern match chambers" and older chamber designs (especially taper-only, forcing cone designs like 300 Win Mag, 30-06 and 270). A diagram showing the differences would be very helpful. It would help to explain why this allows the newer chambers to be less sensitive to bullet-jump variations and tend to be more forgiving when trying to find an accurate bullet/powder combination. This was briefly mentioned in this podcast, but probably was not detailed enough to register with many listeners who are not familiar with chamber and reamer design and tolerances.* It is likely that a lot of people might not realize that a bullet not held in precise alignment as the rifling is engraved can take the rifling asymetrically and actually be slightly misaligned with the bore as it travels down the barrel (in-bore tilt). It might be helpful to describe some of the ways this can affect the barrel vibrations and bullet trajectory, especially lateral jump, etc.
FWIW, I suspect that many people don't fully understand the terms like "freebore" and "forcing cone" used in this podcast. To make matters worse, the use of the word "freebore" has changed somewhat over the last century or so. It once often just meant "oversized area of the bore prior to rifling" in cartridges like the 30-06, 270 and 303 British that only used a forcing-cone-only chamber design. That is different from its current usage of "VERY-slightly oversized cylinder prior to taper into the rifling".
Thanks.
*I think that Dave Emery said something like "freebore about 100 thou length of half a thou clearance", which is gibberish to many, especially metric users.
When you are testing different powders on a bullet barrel combination, do you pick your initial load on each powder by bullet velocity in the loading manual or is there a different metric?
Pick a charge in the manual that will do the job. i.e. get the bullet to expand at a certain distance
This is my second question
I am in the middle of load development for a rifle, and I had some used brass and some new brass.
I know some folks who will fire form their brass before loading. If I'm loading partly with used brass and partly with new brass, what, if any, effect will that have on my dispersion downrange?
Dispersion, very little. MV, however, we see a pretty consistent 10-15fps shift from virgin to fired (fired is faster). After the first firing it levels out.
I have been described as a spelunking-grade rabbitholer, and as such I love the in-depth information you guys provide.
Here's a question that might interest you: there are currently a number of research programs going on in your country proving that it is possible to reduce the magnitude of the sonic boom of supersonic aircraft. I am wondering if these technologies miggt influence bullet design in the future?
Miles got me at the end with the hair comment.
Wow, the camera quality is awesome!
Yay, thank you!
When will we see the new vt bullets
Standard deviations only belong on Bell Curve statistics. Skewed distribution statistics are not well represented by Standard deviations. In my opinion, ammunition performs as a skewed distribution.
I generally agree about the small sample sizes not being valid for ultimate precision.
But if you shoot a 3-shot group and it's already worse than your expectation, is there any point shooting more? It's never going to get any better (unless YOU messed up in which case all bets are off anyway).
Been binging your podcasts today and on the reloading one,it seemed like everyone cringed a little bit when the 308win was mentioned. What would make that caliber different or more difficult to reload with accuracy?? 😊
The chamber tolerances without a custom reamer can be a bit on the large side.
@@hornady got it, thanks!
question on reloading manual data because y'all made me think of it near the end: if a high load listed is say 3000 PSI below SAAMI max, is that related to accuracy? Jayden mentioned how loads are not developed to max pressure, and I know that high pressures can degrade accuracy. If it truly is a "max" load but is below pressure limits, it makes absolute sense that accuracy is the reason. Or is there some other reason?
Usually whoever does the test data does it in increments and the 3000psi-below-max charge was the last one they hit before they went over so that's the one that gets published. I think we touched on it in the podcast but 3000PSI plus or minus is inside the typical ES of peak pressure even on decent ammo.
do you pay much attention to accuracy when load testing? I've seen some sources highlight one powder as most accurate, but I don't know if that's a separate test since I would think pressure testing would be a different setup from accuracy testing.
@@milesn3173
@@jimmywilliams7876 Not particularly. I remember seeing that information listed in older manuals from other companies, but we've seen so much variation gun-to-gun it would be a data-collection nightmare to provide any sensible/reliable data on this. What shoots well in our barrel may or may not in yours. There are certain combinations out there that tend to work better than others but that information usually takes tens to hundreds of shooters figuring it out over a long time. There are still plenty of exceptions to those "sweet spots", too. We don't have the staff or frankly the barrel variety for that. The same folks that do the reloading data also test production ammunition full-time.
thanks for all the work. I now shoot at least 10 rounds of any changes in my loads just to note any change, and 20+ to check accuracy thanks to you and Jayden. @@milesn3173
I have a question. I hope you find them in the comments. Barrel, powder, bullets. I have a rifle that I just can’t find a load that I’m happy with. It’s a new barrel/cartridge. I’ve try several different bullets(all close to the same weight) but only one powder. Should I do a complete ladder test with different powder or just pick a starting load and move on if it doesn’t shot well. Also should I try different bullet weights. I have plenty of twist and for the heavy for caliber bullets I’ve tried. Thanks love the podcast and as you’ve said really enjoy the technical info ones.
Try a different powder or two with a moderate charge weight. If that doesn't work, try and different bullet
This is gonna be a good one!!!
My can was approved in 30 days. Took months for my SBS and SBR.
Why doesn’t Hornady list cartridge pressure on there reloading powder charges with different powders!!!
When will 22 ARC load data be published?
Do you guys sell those Hornady coasters?
Hornady. Sorry for long time no see. The video you upload is on my birthday. So happy birthday to me.
Why when doing load development,let’s say 5 shots per charge weight and you add all the velocities for the specific powder charge together the total speed calculated increases per charge weight but suddenly you will find a charge in the string that’s speed is slower than the previous charge.
5 shots is not a large enough sample size. We talk about that in this podcast.
shot marker will compile target shots... give you moa average etc...
How did you get the Elk back to home.
QUESTION - why does hornady use 24" test barrels and use that for velocity on the ammo boxes? especially when 99% of hunting rifles are shorter and NOT 24" barrels?
Look at Nosler and others, 24” seems the norm. Otherwise it’s hard to fairly compare velocities of powders. Just my guess. 🤷♂️
The barrel makers make them that length, ammo makers would have to put in added labor for no benefit.
The industry standard for hunting rifles is 24”. Even though just recently the hunting world is trending towards shorter barrels in the custom world.
@@Josh-uf1rv RUGER AMERICAN - 22
SAVAGE AXIS 2 - 22
TIKKA T3X - 22
BERGARA 308 - 20
@@jjgriffin3275 lol cherry picking four rifles. And besides it really doesn’t matter what they use. If you read they used a 24” and you have a 22” you can expect approximately 50fps less in velocity. Just gotta know what you’re doing.
Is Hornady going to Manufacture 400 Legend or 360 Buckhammer ammunition in the straight wall cartridges???
I keep hearing questions on seating depth, but none have answered this one nagging question in my head.
If seating depth is not very important, how important is seating depth consistency? If consistency is important, what's the tolerance?
If I'm loading, and my seating depth changes in the range of +/-.002" is that okay? Do I need to find a method that is more consistent? Am I worrying over nothing?
Can someone please explain what a half minute Rifle is. I’m a UK sub 12flb shooter.
Thanks
Id like to see a podcast about using small rifle primer brass being that lrp are hard to get
Good one
Why doesn’t Hornady support the 6.8 western cartridge. Browning and Winchester support the PRC cartridges.
But can we get some more 6.5's in the Grendel wheelhouse.
Hey. Really what I want to hear about is the 256 win mag. Let's talk about that little beauty
So why are you not making 6.8 western ammo????? because u didn't come up with it? hating on the it cause it is a really good..
Hey love the pidcast, but sometimes those squishy mouth noises get picked up by those super close mics. Some of the episodes are hard to listen to l. I don't know if you can just back them off or run the audio through a filter.
Working on it!
Amen to tag soup going on 15 years myself right now. It taste awful.
My least favorite bullets: .358” 200 gr. spire point and 250 grain spire point from Hornady. They acted like FMJ on deer and elk.
I'll pay the barber bill for both Jayden and Miles to get their heads shaved.. No need for a GoFundMe.
Excvellent program.
I think Jayden should grow it and go full Jesse Ventura / Hulk Hogan
Q: were can I get Subsonic 7.62x39 ?.......A: we're sorry all circuits are busy, if you hold on the line for 2 more years a box of 1 will be available....🧐
Jayden Quinlan sleeps with a pillow under his gun.
Holly crap....only a rich man can buy your safes. That's disappointing!!
At least take off the hat!
dont shave your head. you'l be bald soon enough.
HERE'S MY QUESTION. I am a southern and northern AZ hunter - Coues deer and elk. I shoot only Hornady factory ammo, traditionally SST Superformance. Recently ELD X. Please explain - new CX versus ELD-X
cx are copper or monolithic bullets
eld-x are bonded or have lead in them
Now gentlemen slay the dragon of, do aspects of brass effect dispersion? Flash holes, primer pocket uniformity, neck tension, internal neck finish, does neck turning help with a factory chamber ect? I’m a big believer in quality brass making a impact on accuracy. A little fuel to the fire maybe….. ruclips.net/video/VanQm9-RZxs/видео.htmlsi=9rOs9Q4UcEaEwrVK
Please continue forward!
I know it's a pain, and you guys are very busy; so I just want to thank you for the Q&A sessions and please do more of them ‼️🙏🏼💯
More to come!