5.56 Velocity Comparison - 10.3", 12.5", 14.5", 16", & 18". Ten Different Types/Brands of Ammo

[@Spartan_029]

My friend this is the ABSOLUTE BEST video on youtube when it comes to this type of information. If I knew what I know now my decision on my firearms would be different. I owe you a Beer!

[@regulardudegungearreviewsh3132]

Appreciate the kind feedback!

[@DC-cf1hm]

Thank you for putting together such a great and informative video. I have a LMT 10.5 and I just ordered a Ballistic Advantage 12.3 Hanson upper.

[@regulardudegungearreviewsh3132]

Appreciate the views and feedback, sir!

[@baronvonsnazzy3355]

The amount of work you did for this is impressive in its own right. Thank you for doing it, you have more then earned a sub and a like but it’s what I can give. Good luck, I hope you blow up on youtube.

[@regulardudegungearreviewsh3132]

Really appreciate that, sir!!

[@howardvera5849]

Same here subbed simply cause of this content. Superb work my friend.

[@regulardudegungearreviewsh3132]

@howardvera5849 appreciate it!!

[@kopelinfriar383]

Great video man, definitely show all these brands with a 20 inch soon !!

[@regulardudegungearreviewsh3132]

Appreciate it! I'll do one as soon as I get my hands on a 20". Unfortunately, it's a bit low on the list; I'm kinda still in an AK phase at the moment

[@RockOfAgesCFM]

Solid video Brother I’m glad that you did more thorough follow up!! I’m a fan of the 12 five. I’ve got a spec war along the way for me.

[@regulardudegungearreviewsh3132]

12.5" roolz 🤙🏻

[@T20-c8f]

Frick yeah bro! Shout out to you brother! Not many people listen to their fan base or suggestions. This however is going above and beyond.

[@regulardudegungearreviewsh3132]

Really appreciate that!

[@T20-c8f]

@@regulardudegungearreviewsh3132 if you ever get into testing ammo I wonder how that blackhills with the Barnes 50 grain TSX does in all these barrel lengths. That round seems gnarly AF out of even a 7.5” barrel. Side note where did you get that LMT? Is the handguard also LMT? They are by far my favorite company they make the best stuff you can buy. I adore my Enhanced BCG and Bolt on my block 2. Where did you find that tho? Looks like a KAC or dd almost

[@regulardudegungearreviewsh3132]

@@T20-c8f I'd def be open to more testing. I wonder how hard it'd be to get an ammo sponsor? 🤔 Lol I assume that you're asking about the 14.5; the L7D1 upper? I got it from Rooftop Defense. A few months back, LMT was offering them on their website for like $329. The handguard on it is a Centurion C4 with FSP cutout. Super solid rail

[@nathanskupowski4726]

Great test, think for info man! Haven’t seen another content creator do it this way yet

[@regulardudegungearreviewsh3132]

Appreciate that feedback man!

[@GoonBae]

Thanks for your time and effort

[@regulardudegungearreviewsh3132]

Appreciate the views and feedback!

[@JARG]

Good test man

[@regulardudegungearreviewsh3132]

Thank you sir!

[@WhatAboutTheIndividual]

Wow. Great video. Well done.

[@regulardudegungearreviewsh3132]

Thank you sir!

[@andrewclodfelter3782]

Thanks for this upload. I was looking for velocity info for the 12.5 criterion using imi razorcore and this answered so many questions. Have you shot groups using the criterion using imi 77 grain?

[@regulardudegungearreviewsh3132]

Honestly, I haven't grouped with any ammo. I get the majority of my gats zeroed, and then just hit the action range at my club

[@andrewclodfelter3782]

@@regulardudegungearreviewsh3132 Thats how its done! Thanks for all the info you have put out. It's really appreciated.

[@regulardudegungearreviewsh3132]

@andrewclodfelter3782 thanks for watching and commenting!

[@JoseChung21]

Great work

[@regulardudegungearreviewsh3132]

Thank you sir!

[@aahhronismyname8068]

Nice vid. Really wish you had a 20 inch barrel to compare it to since it was the original plan by the man himself. I commented on the other vid. I think powder burn rate has to do with this. And this isn't all uncommon. cf did a 9mm barrel length test and at 8 inches it was at it peak performance. 10 inches started going negative and 16 was more or less bout the same fps as 8 inches or so. So efficiently speaking your lugging 8 inches of steel for no gain whatsoever.😂

[@regulardudegungearreviewsh3132]

I'll get an A4 eventually!

[@BenBelkin]

Great work!

[@regulardudegungearreviewsh3132]

Thank you sir!

[@rjoshm20]

Would be interested to see the velocity difference when adding a suppressor. Especially with the shorter barrel lengths.

[@regulardudegungearreviewsh3132]

So I was working on a vid that does a comparison showing just that, but lots of my footage got compromised. But, I can tell you the difference on my guns with my cans were negligible. Single digits FPS. Small enough that could just be variation from bullet to bullet

[@TacticalTack]

@@regulardudegungearreviewsh3132 Using a YHM Turbo K RB I've been finding surprisingly that I gain between 40 and 50 fps on average out of a 13.9" and 18" rifle using direct thread.

[@T20-c8f]

Oh and to comment on the data, super interesting the 11.5 to 12.5. Classic firearms had a video that showed the same. Also the 16-18… totally proves the MK12 holland recce rifle. I know holland knew his shit but damn he’s absolutely right. I guess the marines are too in switching from a 20” to a 16”.

[@regulardudegungearreviewsh3132]

I was super surprised about that also. More so the lack of real velocity jump going from 16" to 18"

[@markmichaels5835]

Does it seem like the std deviation of a 12.5 is higher than the others? I havent done all the math but on other KZbin videos it always seems like 12.5 has a high inconsistency. Mostly with mid length gas it feels like.

[@markmichaels5835]

Oh, and I'm curious, do you notice any smoothness difference between the 11-16? I'm thinking about building a 11 or 12.5 coming from a 16

[@regulardudegungearreviewsh3132]

I dunno, man. I recognize that I have a sample size of one. I kinda feel that the vid can just be used as another data set to add to the pile of others' data collection. I love my 12.5"

[@LRRPFco52]

5.56 spits a lot of unburnt powder out no matter the barrel length because the propellant column is so tall and narrow, which is a recipe for lack of full conversion. This leads to inconsistent SD and lots of gas port erosion.

[@Presscheckpino]

Great video for my workout thank you! I will prob start going towards 16” from 14.5 now on

[@regulardudegungearreviewsh3132]

Glad it helped out!

[@LRRPFco52]

I think that had more to do with differences in bores than barrel length. Aberdeen has gigantic sample sizes to draw from, and M4 w/ M855 62gr fleet data was 2920fps. M193 was 3050fps. 11.5"-12.5" makes more sense in 5.56. Projectile weight is so low that it isn't doing much at distance anyway, even from 20".

[@RocketsRedGlare23]

I've seen several tests result in a 150-ish fps difference from 10.5" to 11.5" with only about another 60 fps seperating it from 12.5" so i was surprised to see those results reversed with your testing. I have been taught there was a negligible difference between 12.5" and 14.5" and that held true here. The 16" preformed as expected for me as i have long thought that from 10" to 20" the three greatest gains are at 11.5, 16 and 20. This would seem more to be like 12.5, 16 and 20 but either way lol 16 really is the best compromise on size and velocity from 10 to 20 inch barrels regardless of unconstitutional agency rules.

[@regulardudegungearreviewsh3132]

I read something in one of the forums not too long ago where someone said that Criterion Core 's tend to run fast. I just recently put together a 12.5" Centurion build so I'm very curious to see what velocities this barrel runs

[@RocketsRedGlare23]

​@@regulardudegungearreviewsh3132I'm actually going back and forth on a Criterion core barrel for my current build. Stuck between 12.5, 14.5 and 16 which is partly what led me to this video lol I can't wait to see what these cores are all about they are so well designed and sleek.

[@PhilVogt6384]

So. 12.5 is goldy locks

[@regulardudegungearreviewsh3132]

I feel that it is

[@elitecombatfitnesscentral6170]

So to summarize the velocity difference between the 12.5 and the 14.5 for the most part ,all things being almost equal, is…negligible. Cool.

[@regulardudegungearreviewsh3132]

Well, that depends on the barrel. I have another video where I tested a Centurion lightweight barrel on a build I put together for the wife. It's considerably slower than the Criterion Core tested in this video

[@PapaBDR]

Nice video

[@regulardudegungearreviewsh3132]

Thank you sir!

[@PapaBDR]

@@regulardudegungearreviewsh3132 I’d be curious to see some hornady 35gr v max out of a 16 and 7.5inch. The box says 4000ft/sec but I’m sure that’s a 24inch barrel.

[@PhilVogt6384]

M193 has dropped plenty of hogs for me. Hogs in general are tougher than humans…..

[@regulardudegungearreviewsh3132]

What length barrel AR are you tagging them with, just outta curiosity?

[@PhilVogt6384]

16 inch FN.

[@SuspiciousGanymede]

I've taken several hogs with M193, past 250yds it starts losing effectiveness (20" FNA4). Anything within 100yds is toast though.

[@PhilVogt6384]

@@SuspiciousGanymede m193 is still a nasty round. Very underrated. And cheap lol.

[@PrayingPanda]

Duplicate speeds right after each other are usually errors.

[@regulardudegungearreviewsh3132]

Could be

[@DFWWARPIGS]

thank you

[@regulardudegungearreviewsh3132]

You're welcome