14.5” 6.5 Creedmoor vs 20” .308- Ballistically identical?
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- Опубликовано: 6 авг 2024
- What if I told you you could achieve the same ballistics as a long and heavy 308 rifle with a shorter more maneuverable setup? I'm confident everyone would choose the shorter/ lighter setup if it truly achieved the same level of performance. With recent advancements in bullet and caliber technology we are now able to do just that! Internet rumor is that a 14.5" 6.5 Creedmoor rifle will have the same external ballistics (bullet drop and wind defelction) as a 20" .308 so in this video we are going to run both side by side to see what the real life performance difference actually is! Join me as we run a 20" .308 and a 14.5" 6.5cm to 1000 yds and beyond to see exactly what each caliber is capable of.
Instagram: mountainsmulletsmerica
If you are interested in warbird products, navigate to their website using the link below. Be sure to enter code "mullets" to receive 10% off of your order!
- bit.ly/MMMwarbirdpro
.308 rifle setup
- KAC MK11 mod 1 lower
- Geissele SDE trigger
- KAC MK11 mod 0 upper
- Griffin Armament MGL 11 suppressor
- Leupold Mk5 5-25 scope- tremor 3 reticle
- Badger ordnance condition 1 scope mount
- Duramag 10 rd magazines
- Two vets recon tripod
6.5cm rifle setup
- LMT MWS rifle
- Ballistic engineering AR accursed match trigger
- LMT 14.5" barrel- 1/7.5" twist
- Surefire muzzle brake- pinned/welded
- Surefire socom 762 mini suppressor
- Element these 6-36 scope
- Griffin armament single piece scope mount
- Ultradyne carbon tripod
00:00 Introduction
02:00 Gear overview
09:23 100yd Results
14:39 6.5cm- 490 & 750 yds
17:56 308- 490 & 750 yds
20:29 308- M118LR 1035 yds
23:44 308- Ally 176 Atip 1035 yds
25:59 6.5cm- Win 140 sms 1035 yds
28:47 6.5cm- Ally 140 ELDM 1035yds
30:54 308- Ally 176 Atip 1275 yds
33:55 6.5cm- Ally 140 ELDM 1275 yds
37:12 Performance review
44:37 My opinion on the performance
46:05 My experience with each rifle
47:43 Closing comments 
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I always felt the Mk11 was more of a 700-800meter gun, so I think hitting second round at 1275yds / 1160 meters with a gas operated .308 is incredible performance.
I feel like people vastly over estimate a guns capabilities by just seeing what they can hit steel with. In use I found the m110 to be more of a functionally 500-600 meter rifle just because of how long it starts taking to get to target. On stationary targets it can be stretched further but that really changes quick on mobile targets
As well as kinetic energy dropoff. You can hit a 600yd target with an expensive 22 setup, but its probably non- lethal and just very painful to any living "target" after slowing down over an extended range. A 308 might have enough left in it to poke a clean little hole through a soft target causing bleeding similar to a stab wound, but not an instant fight stopper necessarily. All that said, he's shooting stationary steel for scientific demonstration.
As a hunter, I only have ballistic data out to 550m for my 20” 308. I can first round hit a 10” target at 400m all day. However, throw in weather and moving critters, 400m is at my comfort zone.
Backfire has great content on the truth about long distance shooting in the real world.
Honestly this video to me mostly proves that having a consistent load is more important than a "better" cartridge
I agree 100%…. Id rather take a consistent load in any caliber than an inconsistent load in the latest whiz bang that’s going to change the game
Consistent is the key, the more consistent the weight of the bullet and your powder charges makes or breaks you.
Very good point! If you have consistent loads and a consistent shooter, there’s going to be some very accurate rounds on target.
Yep
This channel will be the death of us all. It is, undeniably, a superior channel. Well done.
Ha man just out here trying to carve out my own little niche in the guntuber world. Glad you're enjoying the content! I've got a lot of fresh videos coming so hope you'll continue tuning in to check them out.
Your content is superb and far beyond every other channel! You are a pro!
Thank you! Really appreciate the support! Lots of new content coming so hope you’ll stay tuned and help me grow by sharing the channel with your buddies.
Could not agree more…how you don’t have 1 million plus subs I’ll never understand
@@pilotincommand85I think it’s only a matter of time. My channel is showing consistent growth so i figure if I keep pumping out content that people want to watch the subscriber count will follow.
It's not a dead horse!
Thank you for testing this and showing us.
Also, great shooting!
You provide really good content. Please keep doing what you’re doing. Thanks for sharing this information and for all the work you’re putting into this.
I always love the info you share. Keep it up, and thank you.
Great job! Thanks for putting this all together. I keep trying to tell people that .308 is not at all dead.
Incredible shooting! After years of watching RUclips videos to educate myself, your videos are fascinating, highly educational, and jammed packed with real world data. I don’t know where it gets any better than this?
Great video as usual! Been waiting for this one for a while.
If anyone wondering how their build will perform your channel does a great job of showcasing limitations of different configurations and calibers
Great content and awesome shooting! Thank you for sharing this valuable information. I was very impressed with how far you could push that shorter 6.5 Creedmoor!
Wow, dude. Glad the tube's algorithm finally decided to toss one of your videos into my feed. I am already impressed. Subbed!
Very informative video. Great video as always, thanks for all your work.
Great video thank you !! I appreciate how comfortable you are with your optics
super happy this channel was recommended to me. I was recently looking into a 14.5" 6.5 for a capable compact gas gun and the way you compared these two is flawless.
I’m pumped you found your way to my channel! If you’re into practical long range, stick around because that’s my main focus. Lots of fresh content coming too. Let me know if you’re ever looking for anything particular in video!
I don’t think I’ve been this early to one of your videos. Love learning this kind of info
Its cool seeing your production quality and coherent structure improving over time. Good content man!
OUTSTANDING BUDDY, I've learned ALOT watching you for a couple months now, the smaller 6.5CM is the winner, a smaller more capable package. I'm very impressed ❤
I love the details. Watching these videos are fantastic. Keep up the awesomeness!!
Love this channel! This guy nails it. I’d love to see a video on his gun room. He has a phenomenal lineup
Really great comparison between these 2 rifles. I am trying to optimize my M&P 10 308 gun. Don’t have the time to chase new calibers around but certainly the 6.5 CM is a sold performing round. Thanks for the video as always
Great job! Thanks for sharing this comparison video. Not sure if you have seen any of Focus Tripps videos on short barrel 6.5cm but he comes to about the same conclusion.
Great information from the comparison and a pro presentation. Thanks!
A lot of useful information like always. Hell yeah man
Glad you enjoyed it! Thanks for watching!
the amount of unbiased information this man extrudes is so nice to see. Keep doing you bud, great vid!
Really loved seeing this platform get pushed out to 1200yards, enjoyed the comparison and highlighting of ammo difference.
ALWAYS great information. I learn something new everytime.
I came for the mustache. I stayed for the data
Came?
@@Hoopaballall over the screen
Awesome breakdown and comparison. Thank you.
I was listening and I heard long barrel & 20” in same sentence i laughed and then seen it was a AR platform so it made more sense but beautiful set up. Spot on bet a blast to play with 👍
Great video. Very informative. Thank you.
Target shooting I think 6.5cm has an advantage, no competition. But for me, since I only target shoot to practice for hunting I prefer the 308. The ranges at which the 6.5cm BC comes into play are past 4/500 yards and I'm not taking shots at live game once my bullets drop below a certain ftlbs of energy, especially when considering shorter barrels. Below is data for 2 of my favorite factory loads for hunting ammo if anyone wants to plug them into a ballistic calc for themselves to see what I am talking about. Once you switch to monolithics the BC drops significantly for the 6.5 class bullets and velocity matters way more. Overall really fun video, I am going to be grabing a 16' Sig Cross Trax in .308win and tossing a suppressor on it for hunting the thick Tongass rainforest. Should be getting around 2950fps with the load mentioned below and will do great inside 300 yds. Looking forward to the next video, some of the best content out there.
Barnes vortx .308 130gr TTSX 3150 fps BC .35 vs Barnes vortx 6.5cm 127gr LRX 2825fps BC .468
Are you trolling me or could you not infer that 6.5cm stood for 6.5 creedmoor and not 6.5 centimeters in a video with 6.5 creedmoor in the title?
I just found this channel, great stuff, lots of date. The one suggestion would be put a list of equipment used somewhere. Thanks again I just sub
Great video like always
Excellent editing, shooting and data! Love the sound of that Griffin suppressor, plans for a video on in the future?
Very awesome video! Thank you for this!
Another informative video, thanks!
Excellent data and real world performance testing is always better than tabletop number crunching. Or theory crafting in comments/forums. Excellent as always. I don't feel pressured to get into 6.5CM, and abandon my
308. My MR762 is getting out to 791 yards with 168gr SMK, I bet I could push it out with 175gr SMK or TMK just fine.
I would love to see a 6ARC vs. 6.5 or 6 Creedmoor comparison.
Oh buddy, stay tuned. I’ve got this filmed, just need to edit. 14.5” 6.5cm vs 14.5” 6arc
Great videos. Hope your channel grows. I think something else that would be interesting would be doing some testing with shotguns. AR style of course.
Amazing Video. Thanks You!
great video. i have dope charts for my 14.5 6.5cm LMT / MRGG-A vs 175smk 20" sr25. wild to see it come to fruition on video.
Hopefully the data shown here is in line with what you’ve figured for your own rifles. Always fun to see how the actual data down range compares to the theory in the calculator. Appreciate you taking the time to watch!
great content mate
I get giddy hearing that steel sing from 1000yrds!
I like the 3 or 4 in a row😂
@@28Coves the double taps too
Great vids !
I love your videos and I can see you put a lot of work into them the only thing I think you really need to improve is your audio which I know that is hard to do in the field...Thanks for another great video
I’ve got a new set of DJI mics on the way…. Hoping to fix the wind noise I’ve experienced in the last couple of videos. Always trying to improve so hope you’ll stay tuned!
Great video!
Love the videos sir!
I would be curious about a 16in 308 vs this 14.5 6.5. Seems like a lot of the more recent DMR 308's are in that barrel length. Great content as always
Love it! 100% this is on my to do list. I’ve actually got a new 16” 6.5cm in the works right now so I suspect I’ll likely do a 16” for both the 308 and the 6.5. Hope you’ll stay tuned to check it out!
@@MountainsMulletsMerica can't wait!!!!
I had the same experience in my ar-10 with 18" 1 in 10" twist barrel, at 100yds with 176gr a-tips, major horizontal stringing. Those same projectiles loaded for my .300 prc shot under an inch and with no horizontal stringing at the same distance.
I get that from gun to gun, one load isn't a 'good load' for an almost identical AR-10 in .308
Color me impressed. This video was awesome. 👍👍
I need to figure out the BC on the stiffy both rifles gave me. Great vid!
.118 G1. Sorry.
Nice as always ..Thanks
im here because of your 6marc video. Really opened my eyes
Really awesome to hear you’re enjoying the content! Lots of fresh videos in the works so hope you’ll stay tuned to check them out!
Thank you for this video.
Love your channel!
Thank you! Really appreciate the support!
Well this is an interesting video! Really enjoyed this video
Glad to hear you enjoyed it! Thanks for taking the time to watch and support the channel!
Another great video. Btw - do you write any scripts for the intros? Or just wing it with maybe an outline? You do pretty well on keeping the flow rolling. I noticed you do use two cameras so that’s great for breaking it up. I also liked how you went to the effort to splice in a clip from the specifics when you talked about them; like the trigger close up and scope video clip. Thanks for doing all this - as a photographer I know it’s a lot of work.
great demo
Even though I'm not an American and I will probably never shoot a rifle again in my life, I do like this kind of content.
Great content !!! 👏
Great job and interesting to see what a shorter barrel does compared to a longer 308 barrel.
Just gonna slow the load, nothing more
Man I would love a 6.5 creedmoor zero video. I zero mine at 50 yards assuming I would be within a 4” rise and drop out to 200 yards. I don’t have a near by range to test this myself though. I can’t find anything on RUclips showing this so you might be there first to show different zeros and points of impact and different distances.
Great Video. Thanks
Awesome comparison!
Thank you! Glad you enjoyed it!
The A-tip impressed me.
Thanks amigo.
Great info and for some reason I find myself controlling my breathing when watching those crosshairs. LOL
You really need to pop for a shooting mat, unless you enjoy the feeling of good ole mother earth.
Awesome comparison. 👍
I have a 6.5saum. Would like to see you do a comparison using the saum/prc vs 308. I think the saum would be considerably better. Love your videos, thank you.
Lewis tool just down the road where I use to be from 👍👍👍
Good info 👍
Jesus those A-tip 308 are fantastic..that group at over a grand wow
Pretty amazing how bullet choice and load consistency can impact your performance. That atip is an awesome bullet!
Best video yet, very sweet
Awesome to hear you enjoyed it! Thanks for taking the time to watch and support the channel!
Outstanding video! Do you use a 20 or 0 MOA condition one mount?
Thanks 👍
I shot mt 18 inch 308 with 155tmks at 1340 in a fairly decent wind 6 years ago. Had 4 of 20 hit a 66,% ipsc and got hooked. Enjoyed the valkyrie while i learned more and now run the 6gt. But i find just going out and playing long range is more fun than shooting in natches. Im too crippled to truely say i comoete in the. . Haha. Great vid
Amazing video!
Glad you enjoyed it! Appreciate you taking the time to support the channel. Do me a favor and share with your buddies when you get a chance!
Great video
Great video.
Used 41.5 h4350 with these
145s and at 2930 or 60 off my lands I got a 5 shot 1 hole group. 2770 fps es of 6, slightly flat on the primers. I loaded up 45 more at that seating depth to test next range trip. Hand feeding these is the way to go
Love the video! I'm sending you some hand moisturizer, you're going to need those Ceramides 😅
So impressed with 3M. I just want to know if he's in the Palouse of eastern Washington or Idaho without being too specific. That's where I grew up hunting deer and pheasant. Regardless, I so enjoy this content and just nerding out with the details and builds.
another great vid
Great vid
This guy know what he's doing if there is 22plinkster, this is interesting to watch too! bytheway, 308 is my pick & 6.5 probably shines in Bolt Action.
Lu Tha Stash Bro! You're the Hulk Hogan of the long range shooting brother
Keep bringing this content!
You got it! I’m trying to hammer out the fresh content so stay tuned! Also do me a favor and share word of the channel with your buddies when you can.
You got it 🤙🏻
great video
Hornady states the A-tip is .284 G7 - 6.5 ELD-M is .326 Love seeing hits at that range with the .308. It's all about the velocity and BC. Thus the Higher BC will prevail if velocity is close...
Need to try the sierra 169 and 177grs in the 308 it really boosts the range of the 308
Fantastic video, brother. I've been running a suppressed 14.5in 6.5CM AR-10 (Form-1 Approved SBR) for a few months now, and I LOVE it. Your shorty 6.5CM videos are really valuable in terms of showing what a 14.5 6.5CM gas gun can do at distance. I found that 140gr (and anything heavier) seems to be the point where the 14.5in barrel goes sub-2500fps MV. I'd be curious how the new Hornady Varmint Express (95gr) and V-Match ELD-VT (100gr) would perform for you. I chrono'd each of those two rounds recently with my Garmin Xero and I was getting an average of 2890fps on the the 95gr Varmint Express & 2845fps on the 100gr V-Match ELD-VT with 5-round groups. Huge fan of your content!
Yes, higher muzzle velocity but those smaller bullets probably don't have the BC of the larger bullets. Would be interesting to compare performance between different projectile weights.
@@fubar1217 Yeah. Definitely lower BC’s. And agreed. Thats a good idea. Only issue I can see with that would be twist rates if you want to go from 95gr up to 153gr projectiles. Faster twist will do well with the heavier stuff. Lighter bullets may not perform as well. Worth trying out for sure. Science!
Lighter bullets lose a higher percentage of velocity out of a shorter barrel than heavy-for-caliber bullets do.
Can you do the same with a 16 inch barreled .300blk against the 7.62x39?
Love what you do bubs
Just get .300 for the mags
7.62x39 canceled due to ww3
I enjoyed the video 😊😊😊
According to my box of 140gn Hornady match advertised BC is .326.
SMK are not great for BC. And Winchester's ammo looks like it was loaded with floor sweepings for powder.
Great content keep um coming 👍👍✌
I'd like to see a comparison between the different chambering of same gun and equal length barrel lengths. I'm sure they're out there I just haven't seen it yet because I've got a Ruger Precision and for these 2 sizes, the precisions only come with a 308 in 22-in barrel or the 6.5 in 24-in barrel.
You asked at the beginning, so here's what I'm thinking; Besides exterior ballistics, mean effective pressure acting on cross sectional area of the projo allows more work to be done by the 308 even if it was the same bbl length, second, a higher twist rate requires more energy from the propellant to impart rotational energy into the projo vs velocity (assuming same projo) giving the edge again to 308 for kinetic energy.
Alco ULDC projos have the best BC I've seen, so if its slippery enough, a 308 with more energy will outrun a 6.5 until transonic or past the point where it doesn't matter either way.
Love the video! What bipods are you running on these set ups?
These are both running accu tac wb5 bipods
@@MountainsMulletsMerica Awesome thanks!
Excellent comparison video. I’m a 308 gas gun guy cuz I’m on a budget and my next rig will be a 308 bolt gun cuz I already have the ammo. If I ever become rich I’ll get into 6.5 whatever with a nice rifle and scope 😅
Was looking between the 2 calibers for my next build and today I’m seeing the factory loads of both calibers are nearly the same price. Are you reloading or where are you finding cheap .308. I’d appreciate the hookup deeply lol
@@ConspiracyXClan if you’re just starting out, go with 6.5 creed since it’s about the same price for match ammo. I’ve stacked cheap 308 before the pandemic & subsequent inflation hit for about $0.45-$0.60 cents per round. Now I get my 308 ammo from target sports USA for about $0.75-$0.90 cents per round and it’s usually cheaper than 6.5 creed for ball ammo (sometimes they’ll have sellier & bellot for about $16-$17 per box of 20 rounds of 6.5 creed). At palmetto state website and their AAC ammo line has good deals on 308, 6.5, and of course 5.56