AR-10 vs Bolt Action: BIG Difference In Velocity?

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In today's video, we will be comparing the velocity of an AR-10 to a bolt action to see if there is really that much of a difference. To do this, 3 separate loads were chronographed using a Magnetospeed V3 with 5 shot averages. Both rifles are using a 16” barrel, 1-10” twist with 6 grooves each. Both setups were fired at a range of 100 yards.
Testing: 2:13
*It should be noted that this test was done using only one barrel length (16”) and one caliber (308 win). It is very possible longer barrel lengths, different calibers, the same barrel manufacturer, etc. could have a larger effect on the velocity difference seen between the two platforms.
**These tests are meant for entertainment and educational purposes only. At this time, I do not have any coupon codes for MidwayUSA.
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Опубликовано:

26 июн 2023

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Комментарии : 593

@chillmonkey6782 Год назад

I think this debate could be summed up the way Paul Harrell says it: “The difference is within the standard deviation from one shot to the next with regular ammo, and not enough difference to make a difference.”

@mountainsurge7235 Год назад

He is my absolute favorite to watch!

@alcantrell5340 Год назад

Mine too👍

@BuddWolf Год назад

Sounds like something Yogi Bearra would’ve said 😂😂(“ain’t over til it’s over”,type deal)

@1014p Год назад

Until your precision shooting more than 300 yards with points counting on grouping or hits. Average commoner in most cases difference is negligible. What Paul failed to say is its negligible until actual precision and reloading are in play.

@keithcarpenter5254 11 месяцев назад

You be the judge.

@tylermatthews7655 Год назад

As Paul Harrell would say “not enough difference to make a difference “

@riiddisbuk2496 4 месяца назад

In better words; "Irrelevant differences."

@chamburrito5506 4 месяца назад

"you be the judge"

@howardmaryon 2 месяца назад

All praise to Saint Harrell. There will never be another.

@calvinhenderson4200 10 месяцев назад

Thanks for honesty on the groups. I was beginning to think from all these RU-vid videos that I am the only person that all my rifles are not Sub MOA.

@sethwinn4061 4 месяца назад

The camera adds 20 lbs, and cuts group sizes in half.

@davidhandyman7571 4 месяца назад

Far too many variables that keep changing in the real-world conditions. That is why manufacturers use enclosed ranges and specialized equipment to test ammunition and rifles. As someone that shoots rimfire benchrest, I have scored 250 out of 250 with 11 out of a possible 25 centres. I have also scored 239 and only 1 or 2 centres. We shoot at an open range where it is not a matter of if the wind is blowing, it is which direction, how fast and how variable it is.

@jsaction33 4 месяца назад

It all depends on how you measure MOA. Most companies and RU-vidrs just pull tricks to say it's sub moa when it's not. If you're shooting groups of less than 5 rounds you really can't draw conclusions on accuracy.

@sethwinn4061 4 месяца назад

@jsaction33 MOA is measured in 2 ways: correctly, and incorrectly.

@Gottaculat 4 месяца назад

Sub-MOA isn't really important for most shooters, to be blunt. WWII battle standard for a rifle was 3 MOA or less to pass. Most firefights are gonna take place under 300-350 yards, and a 1.5-2MOA is totally fine for shooting a man at that range. Also don't forget, for many shooters, their rifle is more accurate than they are, meaning it may be sub-MOA, but if you can't shoot sub-MOA because you lack trigger discipline, then it doesn't really matter, 'cause you're only as accurate as your skill level permits. Also, if you don't know how to properly zero your irons or optic, the MOA of your rifle is the least of your worries, because even a

@MTMILITIAMAN7.62 Год назад

If you understand how the AR operates, you shouldn't expect much difference in velocity because you know the bullet has left the muzzle before the bolt unlocks. This is why dwell time is important. You are giving the gas system enough time to fill before the bullet exits and pressure is reduced to almost nothing instantaneously. So while there is a minute increase in volume of the AR compared to the bolt gun, which doesn't have a gas system to fill, it shouldn't be enough to affect velocity in any meaningful way.

@nickma71 Год назад

The bullet is in front of the wave pressure, not waiting on it. You are correct. Action/reaction is in play here, not using spent gas to operate a bolt.

@male20raggzo01 Год назад

We have a winner... You sir are correct...

@TROOPERfarcry Год назад

The difference in velocity between the two platforms was the smaller than the difference between one shot and the next on the same platform.

@bananaballistics Год назад

Definitely seemed to be that way for the most part

@handlebullshit Год назад

"Not enough difference to make a difference."

@joes973 Год назад

I can't read this comment without hearing Paul's voice.

@Hammerback972 Год назад

Confusion has entered the chat

@tatsuhirosatou5513 11 месяцев назад

@@bananaballisticsDI shouldn't lose much, roller delayed blowback wont lose any but short stroke and long stroke piston might seem some level of difference

@BeardRubEnjoyer Год назад

Difference in barrel friction? Tiny differences in inner diameter? Very interesting science, appreciate your videos.

@georgewashington938 Год назад

that is what I was thinking

@jmkhenka Год назад

yeah, every rifle handles every load differently. But involving a separate rifle was not necessary really, as the opening/closing of the gas port would be the same thing in practice. The AR groups are mostly useless to, as he is resting the rifle on the barrel :)

@stevebarbour1215 4 месяца назад

Probably different barrel brands

@theeddorian 2 месяца назад

@@stevebarbour1215 I believe he mentions that the barrels are made by the _same_ manufacturer. He was aiming at achieving as close to the same conditions for the shots as possible, so that everything could be controlled was controlled, and the only variable would be the opening and closing of the gas block.

@JohnLee-lr2op 2 месяца назад

@@theeddorian, he said that the barrels were not made by the same manufacturer, but they had the same length, the same rate of twist, and the same number of grooves. The only answers that I have are: there isn't that much difference between the two as far as .308 Winchester is concerned or that with quicker burning powders the pressure build up occurs well before the gas block. I am not sure if barrel material makes a difference, or if the manner in which a barrel is rifled would make a difference. I am also curious as to whether or not any treatments might make a difference.

@robbytheremin2443 Год назад

My real world experience is the same. My son in law has a Ruger Precision rifle and I have an AR-10. Both are in 6.5 Creedmoor and we can't find any difference in performance. Thanks for another great video.

@mesauer 11 месяцев назад

Peak pressure happens WAY before the bullets gets to the gas port. Peak pressure actually happens very close to the bullet hitting the rifling. The difference is how quickly the peak pressure drops. The pressure “loss” through that tiny gas port (tiny in relation to the bore) is insignificant. Same scenario with brakes, flash suppressors etc. Just not enough difference to make a difference. Great video! It reinforces what I have learned over 60 years of shooting.

@Wolverine6869 4 месяца назад

Thanks for all your work, I enjoy the numbers, humor, and your efforts.

@durrmoment291 Год назад

I was SO hoping you would close the gas block, AND YOU DID...YAY.

@howardmaryon 2 месяца назад

The “3 good, 2 bad” groups are something I am used to in several different rifles. It is to do with barrel heating and barrel resonance. It is consistent however, once the barrel reaches a certain temperature, the point of impact remains consistent. Of course if it was the first two shots that were off point of aim, then I need to go and put my head in a bucket.

@MEvegasRealtor Год назад

Your style of presentation, my friend, is spot on. I can say that no matter what information I'm looking for: yours are the most enjoyable to watch, because of the subtle humor + straight to the point. Please don't change and start throwing in a million jump cuts, and weird transitions like everybody else loves doing, haha. As always: amazing test and results. Thanks for this one!

@redfaux74 Год назад

100% agreed. Everything in 10 minutes and good humor.

@bananaballistics Год назад

I really appreciate the kind words and really appreciate the motivation! I hope to keep making better content

@terryfaugno9242 Год назад

And that rich baritone... :D

@redfaux74 Год назад

@@terryfaugno9242 - He would do well in a church quartet as a bass singer.

@PowerMovesCollective Год назад

Should have done ar15 vs bolt action ar15

@miamidiver7 4 месяца назад

I love how you broke it down. Seen your plate pen comparisons before, but with the basic breakdowns here, it is what I was looking for.

@briancarroll8382 11 месяцев назад

Great review. Just got my first AR-10 in 308 last year and I love it. Heard a lot of similar thoughts prior to your video so thanks for a realistic test to review.

@johnsanko4136 Год назад

This is really fascinating, and I'm glad to see hard numbers on what I kinda figured after shooting my .308 bolty-boi and AR-10 at long distances and using very similar hold points.

@boywonderrr71 Год назад

Dude, those numbers are....bananas!

@heavyjmertes197 4 месяца назад

Another quality video! Well done.

@goodbonezz1289 Год назад

Great content. I appreciate your methods. 😊

@guardianminifarm8005 Год назад

Great consideration & test. Interesting results. Thank you

@johnmikel5934 Год назад

Excellent demonstration, evaluation.

@travij66 Год назад

That was a cool and very interesting test. Thanks

@dtmelanson 7 месяцев назад

Excellent work. Thank you.

@jamesgravel7755 Год назад

You make great videos for the guys like me. This is info that is greatly appreciated.

@jimmedlock Год назад

I enjoy your presentations. This one is quite interesting. The results surprised me as they did you and most of your viewers.

@williambell9466 10 месяцев назад

Man, great video. Really like how you present and your no-frills, straight for it style. Interesting video. I have my own thoughts on the topic.

@Happy-Honkey Год назад

Right on, good test, thanks.

@michaelgarrow3239 Год назад

I have a patent on a gas operated rim-fire. We experimented with 17HMR and had about 25 fps difference on average between semi and blocked gas port- definitely lost in the variation between individual rounds.

@rlbadger1698 Год назад

You might find my explanation on the second ammo interesting.

@Will-W 3 месяца назад

I really enjoy your channel, I've watched a bunch of your videos but saw I wasn't subscribed so fixed that today.

@RationalHumanisthere 4 месяца назад

Great video. I appreciate it.

@aargomemnon 10 месяцев назад

This is mind bending test. Thank you

@Rickkari7 Год назад

Nice guns. Great video. Thanks.

@BillHimmel 9 месяцев назад

Thx a lot! Really helpful!

@Lanzerath1244 Год назад

Great channel. Great content.

@Adam-nv9zo Год назад

Man this is was pretty cool. I was literally just watching another video and thought to myself, i wonder what the difference in velocity between a bolt action and a semi-auto with the same barrel stats would be. Right as I finished watching that video i saw you had just uploaded this test. Interesting results for sure. Definitely not what I expected.

@bananaballistics Год назад

I really appreciate it! I have been wondering for a long time as well.

@danchristopher7957 Год назад

Great subject matter. Thank you.

@javiersp01 Год назад

nice video, thank you !!!

@hughb5092 3 месяца назад

Your videos, besides such excellent content are exceptionally well edited, which is a priceless talent to have.

@poorfatman5317 Год назад

Cool video 👍

@WvMnts Год назад

Thanks for sharing!! Really enjoyed hope to see more with 20” barrels and different ammos/powders. Same barrel company would be super cool. I have a Wilson’s combat 223wylde 18” and a Daniels Defense 18” and with same ammo and same muzzle break the Wilson shoots 100fps faster. I contacted Daniel’s and even sent it back for barrel replacement and it came back doing same thing. DD said it was just how cold hammer forged are made. Also after 1k rounds through each the DD has port showed 10times more erosion.

@anthonylloyd2324 4 месяца назад

Interesting. I've always wondered about this. Nice job.

@guidichris Год назад

16" seems a bit short for 308. I wonder what the results would look like with 20" barrels and the gas block tuned for optimal operation? Great video!!!

@redwolftufelhundin5433 Год назад

Me building a 14.5 308...😅

@albundy7459 Год назад

On average I was pushing 168 hpbt at 2550 with 20” AR10. I believe at my highest charge I was a smidge over 2600.

@modjo4 Год назад

It seems the powder is burning fast enough that when it reaches the gas block it's not even accelerating the bullet anymore, maybe with different ammo it would benefit more from having a bigger barrel.

@bananaballistics Год назад

I was wanting to try longer barrels, but did not have the same barrel length in the same caliber. I appreciate it!

@guidichris Год назад

@@bananaballistics Bummer. Of course you now have material for a future video. Worst case, you can test 16 18 20 and 24 in AR308 platforms.

@bradsmith4279 2 месяца назад

Great videos with surprising results seems to be the way things go around here!

@bryanst.martin7134 Год назад

One of the best ballistics videos I have seen! I have been concerned about the effect of the gas porting to velocity. You answered that in 8 minutes. The actuating gas is relatively small. That the longer barrel was minimal in gain surprised me. The powder companies are really doing their part! I have a pet cartridge, 300BO with 85gr pellets. A TREX and a Penetrator. 2550fps?

@johnpoole8321 Год назад

Good video with interesting results for sure.

@ericbergfield6451 Год назад

Neat test, weird results...

@theender422 Год назад

Fuzzy memory but I think with the timing of the gas system the bullet is gone from the barrel by the time the bolt gets unlocked and starts traveling backwards.

@williecompton243 Год назад

@@theender422 It is, indeed. Long gone.

@PureCountryof91 10 месяцев назад

I have a confession. I watch your videos primarily because your voice is incredibly soothing. Your presentation is just an added bonus.

@augustobraidotti6992 4 месяца назад

OMG, me too :)

@DLN-ix6vf 4 месяца назад

think you two have a man crush on him ; anything else you want to tell us ?

@PureCountryof91 4 месяца назад

@@DLN-ix6vf nah. Just expressing my humanity. I have a wife and family that I adore more than anything.

@DLN-ix6vf 4 месяца назад

so did Chris Jenner ! I may want to delete that comment if I were you :)

@gregorysloat4258 4 месяца назад

If he isn’t in radio, he should be. He could make money in radio, or doing voiceover work.

@1rukie 4 месяца назад

Great video always wondered about a bolt action VS AR

@ulflyng4072 Год назад

Thx for info and giggles

@stevekynard6658 Год назад

My 6.5 Creedmoor AR10 is 1/2 moa accurate but runs 100 fps slower than my bolt gun with the same ammo. It's big and heavy but a hoot to shoot off the bench at long range steel.

@TheDuckofDoom. 3 месяца назад

Barrel volume is likely a factor, the gas lost to the port verses the volume of the barrel is going to be a substantial difference with 6.5 vs 308. My back of the envelope calc indicates a 37% more relative loss to the port with a 6.5 if it had the same pressures, similar bullet acceleration, and gas port adjustment. But there are even more variables than those, so 37% comes with a complimentary large grain of salt. (If the port removes the same teaspoon from each to activate the same mechanism, and the 308 barrel has 1.37× the volume of a 6.5.)

@nickcitron2369 3 месяца назад

Food information, thank you, sir!

@stevezweig5367 2 месяца назад

Great vid was wondering about this, now I know

@benlomond8055 Год назад

This is great I have totally wondered this in the back of my mind for a very long time - Love that you did this! I have wondered the very same thing on semi-auto's vs Bolt action - Guess it's OK to hunt w/the semi-auto LOL

@coberholtzer08 5 месяцев назад

Thank you so much. I was trying to decide between AR platform and bolt action with recoil mitigation in mind, concerned the AR platform was giving-up accuracy and velocity. Now I know there isn't really any difference in the latter!

@manganvbg90 Год назад

Difference in rifling type can create different gas seals. Also the precision of the rifling cut will lead to difference in gas seal

@ClaytonMacleod Год назад

As you’ve already been reminded, looking at accuracy with the Magnetospeed on the barrel is kind of pointless. As is looking at accuracy when you’re resting it on the barrel when you shoot. Nothing should touch the barrel. One of the pros of the LabRadar.

@spacewhales9129 Год назад

keep up the good content, you'll get big in no time

@bentoncushing8693 4 месяца назад

Great video,,,great voice,,,excellent topics..

@jimirvine3152 4 месяца назад

I was surprised I expected the SLR to lose some out the action

@billmounce458 8 месяцев назад

FTR, I have shopped at Midway for years. They are one of the very best firearms related businesses. I HIGHLY recommend them.

@masonbrooks8002 Год назад

Gotta take into consideration that the round in the AR10 has more time to heat up because it immediately chambers the round. So In between shots when ur waiting for the chronograph to stop shaking the round is heating up.

@corcorandm Год назад

Great point

@accur81 4 месяца назад

Great video - I love how you fairly compare platforms. I'd like to see more common ammo used - most hunting rounds downrange are probably Federal, Hornady, Winchester, Remington, etc.

@Lure-Benson 4 месяца назад

I'm not disagree with you just wanted to say the PPU ammo here in the Pacific NW is now every place to be bought and by chatting with shooters of PPU ammo they really like it and it is loaded with no hold bared for top pressure which show in the primers are flat from High pressure. I am a reloaded since 1976 and now a very Highly advanced reloader in wildcat cartridges and builder of rifles in wildcat cartridges even AR 10s I do and sell in all WSM magnums ( 6.8 Western and 6.5 PRC )then standard cartridges and reloader cartridges or chamberings like the 6.5 x 50 Jap in the AR 10 is a perfect match better than the 6.5 Creedmoor, so PPU brass and Bullets I really like but the bullets are better for targets and varmints die to the PPU bullets blow up very easy. For load development PPU bullets are so cheap working up loads make for not so painful in price for bullets.

@darrylsturgis7389 4 месяца назад

I am opting for a .308 and was definitely curious on the differences between an AR platform vs a bolt action. Good info.

@ronbdallas 4 месяца назад

Another interesting video.

@howardmaryon 2 месяца назад

The original AR design positioned the gas block port based on the barrel pressure at that point delivered by the military round available at the time. The adjustability screw was there to compensate for a worn or residue fouled action. The British Bren gun also has an adjustable gas port accessed via a big knob on the barrel, because action fouling was a big issue in the 1940’s. Modern powders, especially the fast burning ones will deliver maximum pressure earlier in the barrel than medium burn ones. I hope this idea is helpful.

@lazytommy0 3 месяца назад

Awesome job (:

@deucedeuce1572 Год назад

Appreciate the video. Really good info. My only annoying critique is to not ride the bolt forward (charging handle). Supposed to drop it and let it pick up speed so it don't go too slow and cause a jam. I had a negligent discharge once because of that. Induced a failure, which caused a double feed which caused me to have an ND. If the bolt don't have enough speed, the extractor might not snap onto the rim of the round, so then you cycle the charging handle again it won't eject the round in the chamber, but will then feed another round (double feed).

@balabay77 6 месяцев назад

What a great video. I’ve always wondered if I made a good choice when I bought my AR-10 (SFAR Ruger .308) instead of bolt action. Now I know that AR was a good choice. Thanks for sharing your findings 👍

@deanthakid9803 Год назад

Opening her up all the way is not weird to say my friend. Lol😂😂😂 Great content as usual

@rubencantu5067 Год назад

The gases in the semi auto are reaching the gas block after the bullet has reached the muzzle, thus the velocity of the bullet is not affected regardless of the gas block being open or closed

@andyherzfeld9492 Год назад

Interesting comparison I never really thought about it. I do load for my AR's and my bolt actions differently but that is mainly for OAL and not velocity. I have found with handloading and playing around with different powders, cases, primers and bullets you can eventually find what that particular rifle prefers and it may not be ideal for another type rifle in the same caliber. I like to optimize each for my rifle with a particular load that give me the best performance for that rifle in terms of accuracy and adequate velocity to get the job done for that caliber. I just never thought about AR gas systems impacting velocity over a bolt action, I agree it would be interesting to see with longer barrels.

@bananaballistics Год назад

I agree with you completely. Many powders work good in one setup but not another. I was wanting to try longer barrels, but did not have the same length in each. May need to be revisited

@glenn6229 2 месяца назад

I enjoy your video clips. A Video on the FPS on powder loads posted in the Hornady reloading manual versus the actual FPS. I often believe they are conservative loads and the actual FPS are lower.

@Renegade20071975 Год назад

I love that you are so….. just like me. Closed off the gas block and forgot the bcg won’t cycle. Yep. I feel ya brother. Keep it up. Love your channel.

@bananaballistics Год назад

I really appreciate it! Gotta show some mess ups lol

@user-go6cj3zw9m Год назад

Great presentation and good video. Regarding the short barrel lengths for a 308, I agree with your statement that it's possible that the powder is not completely burned. This could be attributing to the higher than expected velocities in the semi auto. Using a 20 inch bbl in both guns might produce different results.

@calvinhenderson4200 10 месяцев назад

I agree

@user-wv5rj8lh4r 4 месяца назад

Yes sir I've had this question for a long time

@B_r_u_c_e Год назад

Thank you.

@SausagecatChannel 4 месяца назад

Agreed The difference is nominal enough to be negligible. Gonna assume is a bigger difference in rifling at play bein a more determinate factor of velocity than action.

@jray4131 2 месяца назад

That’s an interesting observation about the powders burn rate vs velocity differences. Maybe that could be a test in the future for more video subject matter.

@Buckshothill 2 месяца назад

Finally found a video that shows it the way it is and not doctoring it up to show there favorite rifle.

@toddk1377 Год назад

This is definitely interesting, as I've seen many comments on other videos about that argument of velocity loss using a semi auto vs a bolt action. I guess the powder being used is more so the deciding factor here.

@bananaballistics Год назад

In this test, it definitely seemed like powder was the deciding factor

@garykanitz2826 11 месяцев назад

I think the issue is illustrated by the heavy bullet, and is connected to the short barrellength. If you are using all your powder/pressure in the barrel generating velcity, then sending some to the gas block can make a difference. where as a longer barrel would not. Conversely, if you have more powder/pressure than can be used in the short barrel, then a longer barrel would make it faster, but siphoning off pressure for the action would not make it slower. On the other issue where the ar was faster, I'm sure it has to do with the total pressure curve over the whole length of the barrel and how that changes the burn rate. But that would be a fascinating investigation to focus on. Those sorts of anomalies are where revolutionary discoveries that change our understanding of physics are made. Go for it! I'd love to see one or more videos figuring that out! I'm guessing others would too.

@joemanco-no4jy 2 месяца назад

That was VERY good.

@juhanivalimaki5418 4 месяца назад

I am happy the powder burn rates were mentioned at the end. Comparisons are only valid when the correct powder and somewhat correct barrel length is used. Otherwise were are not moving on correct parts of the pressure curves. Here could be AR-10 and bolt action both with 18" barrel, and a mid-range burning rate powder, like Vihtavuori N140-N150.

@gnar6618 Год назад

very nice vid

@ob1257 Год назад

Food for thought, thanks B! Edit: Thanks BB!

@IHateYoutubeHandles615 2 месяца назад

Another great video, thanks!

@CrapE_DM Год назад

Firat time viewer, and the first couple seconds of listening to your voice, I thought it was a fake voice, but joly cow it keeps going.

@Tool-Meister 7 месяцев назад

A). I’m no physicist, but the metering screw actually controls gas VOLUME . When the void is full, the additional gas volume in this confined space, increases the pressure. B) In the early 1980’s I tested my Remington BDL and my Browning BAR, both with 26” barrels, chambered in 7mm REM. Mag. The test was measuring bullet drop in 50 yard increments out to 500 yards. The differences were insignificant. I used these two guns shooting silhouettes and there was a raging debate over accuracy, drop, etc. when using an autoloader. The Browning actually held a slightly tighter group with the majority of the loads tested. Unfortunately, it only held 4 rounds, but magazine changes were quick. Go figure. Both rifles are now in younger hands. I will however retain my AR10-308 until I’m dust!

@pugs1377 Год назад

Only other thing I can think that may be a readable factor is grove depth and actual barrel diameter. I would think if you slug the barrel you might be able to get the grove depth along with actual diameter. Neat test with suprising results.

@ctefft97 3 месяца назад

Great video. I will admit I was not thinking about prior. I think I will try my AR 9mm vlow back vs. A 5 inch pistol. I think folks would be shocked.

@larryrivers2752 4 месяца назад

I've been wondering about the same thing for years. I would've bet my bottom dollar the bolt action would be the best all around !!! Amazing.

@MasonPieters 4 месяца назад

My understanding with bolt vs gas was accuracy and not so much velocity. Great video, straight to the point and easy to follow for a simpleton like me. Thanks

@sgt.grinch3299 4 месяца назад

Never thought about. Let’s get some of this information.

@joyroc885 Год назад

I visited this about 5 years or so ago when I was thinking about getting a bolt action. I said to my self "self is it worth getting one over a well built semi auto with better follow up shot?" Everything I was reading everyone was saying the bolt action will out perform a semi auto easily. I didn't buy into that 100%. I started doing my own research and reading up on barrels for the AR. After a while I came to the conclusion the accuracy and velocity wasn't going to be that big of a difference if at all. Even told a friend I wouldn't be surprised if the military started using them more for sniper teams which they have. Why I don't have a bolt action. :)

@ricdandel1145 5 месяцев назад

I think the main benefits of a bolt action are reliability. Especially when shooting suppressed. Beyond that maybe weight.

@DTreatz 4 месяца назад

you should still get a bolt actions because.... *GUNS* 🤣

@joyroc885 4 месяца назад

@@DTreatz how do you argue with that? 😂

@patmcbride9853 2 месяца назад

This is why you test different loads for your barrel. More or less powder can give you better or worse accuracy, and also give you contradictory velocities, because the barrel has a say in how bullets fly.

@charliepyle1626 2 месяца назад

I like it when testing teaches us something, especially something most people would have put the bank on.

@Buckshothill 2 месяца назад

Thanks your great at telling it the way it is and i really enjoy watching your video's. I was just wondering if you have any bear creek arsenal ARs or if you could get your hands on one to compare it with a high dollar gun. I build Bear Creek ARs because of the cost of what i can afford and so far I'm done with my second build and totally happy with how they hold up they cycle great and i have never had a problem with them so far except when i went to clean the bolt one day and couldn't get the keeper out to remove the firing pin and found out that they had the screws backwards in the gas block but after fixing that have shot many rounds and no problems.

@spaceranger3728 Год назад

Good voice for radio.

@timtimtimmay4654 Год назад

I have to admit, I wondered if the aperture of the end of the barrel in a bolt gun was sufficient enough to not reduce velocity vs the gas tube relieving enough pressure to noticeably affect the backpressure in the barrel and compensate for the use of this same gas to cycle the bolt. I think I wrote that out right. Basically I always thought that the relief of gas freed up restriction in the barrel in semi autos vs bolts but never had proof, and always wondered. Pretty much the same theory of larger exhaust pipe, X pipe or H pipe in a performance car freeing up horsepower and allowing the engine to cycle the pistons better (along with better scavenging of exhaust gases). Great video possibly giving some credibility to this theory.

@lostforevermore7150 4 месяца назад

The reason the bolt action is slower is probably because the rifling isn't as worn out or is making more contact on the bullet. Wider lands and narrower grooves on the rifling. Either that or just plain old wear on the AR barrel.

@cheops1292 4 месяца назад

I think the velocity surprises come from the Freebore in each chamber. Longer bullets need the rifling to start just a bit further from the chamber, if the projectile engages the rifling when chambered, the pressure curve peaks faster and higher and accuracy is affected, a reason seating depth is so important.