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@beastkiler2Ай бұрын
Some surprising results! Great video! I think you should make a video series and test all the common chamberings. I would like to see the 7mm-08 from 18" to 24". 6.8 Western would be interesting too
@scottythebody0811Ай бұрын
Great review. It very well demonstrates how efficient the 308 is. Thanks for posting.
@ThebiggamehuntingblogАй бұрын
Glad you enjoyed it!
@robertkeller9828Ай бұрын
308/30 cal in general still rules. !
@edwardhoward4708Ай бұрын
For reference, I took a lot of data on barrel length and muzzle velocity from “ballistics by the inch” and “rifle shooter”, did some averaging, and figured out this; 1. A 5.56 or .223 (assorted loads all averaged) gains about 30 fps for the first inch past 16”, 29 fps for the next inch, 28 fps for the next inch and so on. 2. For .308 with 150 grain bullet it gains about 25 fps for each inch past 16”, 24 fps for the next inch, and so on… Note I said “about”.
@KG-wn7fmАй бұрын
Great review. I don't think I have seen a fps comparison on barrel length before. Thanks for using common cartridges 556 and 308.
@ThebiggamehuntingblogАй бұрын
Glad you enjoyed it!
@bekkerbosbeer3453Ай бұрын
Thanks , great comparison video ,much appreciated 👍🏻
@ThebiggamehuntingblogАй бұрын
Glad it was helpful!
@jameswilson5562Ай бұрын
It makes a difference but not much with cartridge that doesn't hold alot of powder when u get into cartridge that holds 80 plus grain of powder there is a big difference
@ThebiggamehuntingblogАй бұрын
I agree. That's probably why there are fewer barrel length options for the bigger magnums: you can get a 26" barrel or maybe a 24" barrel too, but that's it. Putting an 18" barrel on a 28 Nosler (or similar) would probably be a big waste of time.
@Theloss52Ай бұрын
I see pressure waves in a barrel, sorta like variable intake runners or velocity stacks in an internal combustion engine. So going 1-2" longer from one point may not give you as much increased velocity as the next 1-2" would. I can only think it's because there are waves of energy bouncing up and down the barrel as the bullet is pushed out
@chipsterb4946Ай бұрын
The video is great! Really solid, useful data. One takeaway for me is that while 16” is a good minimum barrel length for 5.56, 18”+ is what you need for .308. Just in general - lots of exceptions. The archived BallisticsByTheInch web page show good data for pistol cartridges plus .223 Remington. There you see the loss for every inch of barrel increase significantly when you go from 16” to 14” with a 150 grain bullet. Most of the pistol cartridges start showing a decrease in muzzle velocity once you hit a certain barrel length. .44 Magnum and .45 ACP both do best with a roughly 16” barrel. 9mm Luger looks like 12-14” produces maximum velocity. I recently tested .45 ACP in 4.45” HK, a 5” 1911, a 6” barrel revolver (equivalent to 8” case head to muzzle), and a 16” PCC. One surprise was the revolver produced the same velocity as the 4.45” semiauto. I knew the revolver had oversized chambers but wow! The other surprise was the 16” barrel only yielding about 10 fps per inch vs. the 1911. It’s possible the PCC’s blowback action wasted some energy the 1911 retained because of its different lockup mechanism. (This was with 2 different types of 230 grain loads.)
@jordanr8312Ай бұрын
Great content John and makes me miss living in ETX.
@ThebiggamehuntingblogАй бұрын
Thanks, glad you enjoyed it!
@AlienMetalsАй бұрын
That Bergara barrel seems fast. I'd be curious to see what a different 18" barrel would do.
@liverpool6380Ай бұрын
So happy you did this!🥃🇺🇸
@corybrown8422Ай бұрын
Nice test
@ThebiggamehuntingblogАй бұрын
Thanks!
@AlienMetalsАй бұрын
Haven't watched the vid yet but typically the 308 looses appx 25fps per inch.
@a15thcenturysuitofgothicarmorАй бұрын
The 308 info seems really weird. A 125gr goung slower and 150gr or a 165gr. What?
@ThebiggamehuntingblogАй бұрын
You make a good point. That 125gr load is from Hornady's "Custom Lite" line that's a lighter bullet going slower than normal to provide a low recoiling option for hunters. I was curious to see if a "low powered" load like that would be less sensitive to barrel lengths than more typical loads.
@a15thcenturysuitofgothicarmorАй бұрын
@@Thebiggamehuntingblog ohhh I see, I had thought maybe that was a custom load to basically have an exaggerate example of what the velocities would look like. My bad
@ThebiggamehuntingblogАй бұрын
No worries. That was a good question because it is indeed an unusual load.
@MUI_Shaggy0123 күн бұрын
Any barrel shorter than 24 inches is too short, my Savage 110 in 223 has a 26 inch barrel, and I typically get 3,400 ft/s with just 55gr fmj ammo.
@SlothlikelouАй бұрын
Could you do a comparison between rounds being in direct sunlight at the same temp from being covered or stored? Direct heat could create a higher temp. Just curios.
@WesternReloaderАй бұрын
Ironic when a dude gets a magnum-ish cartridge, but then puts it in a 20” barrel, reducing the velocity to that of a non magnum. Weird flex
@ThebiggamehuntingblogАй бұрын
100%! Great way to turn a 6.5 PRC into a 6.5 Creedmoor!
@MilwaukeeDillPicklesАй бұрын
Sometimes the priority is the short barrel. And if it is, you’ll have to start with a hotter load to retain performance
@cjberanАй бұрын
Putting on a suppressor is a big reason. It’s no fun walking through the woods with a 24inch plus barreled gun
@edwardhoward4708Ай бұрын
@@cjberanit is for this reason I am looking for a rifle with falling block action. A 26” barrel leads to a gun that is as long as a bolt action with 20” barrel.
@chipsterb4946Ай бұрын
@@edwardhoward4708I just got a Ruger No. 1-B in .270 Winchester with a 26” barrel. It doesn’t feel any longer than my 22” Sako A III carbine. I’ve only taken it to the range to sight in the scope, but I think it will turn out to be a sweet rifle.
@whillhernАй бұрын
I love your videos sir. I really love the ones with Kevin Robertson. I have a Ruger M77 270 with a barrel that is onnits way out. Who did the 9.3s for you guys? I have always wanted one on either a win mod 70 or Ruger m77.
@ThebiggamehuntingblogАй бұрын
Thanks! Unfortunately, the gunsmith who did that work for us has retired and closed up shop. That's a shame because he did really good work!
@antonioperezchica6902Ай бұрын
I Had a LH M77 Converted from 30-06 to 9.3x62 a few years ago. Benchmark Barrle in WA, made the barrel and install it. I then Had BRUBAKER ARMS do the internal adjustments to get it feeding and extracting Perfectly. It Shoots wonderful and i have Taken Deer, Bear and Elk with it over the past 4 years. If i where to have another 9.3x62 made BRUBAKER ARMS would be the first person i would talk to. Good Luck with your Project!
@poorfatman5317Ай бұрын
❤
@tommcqueen3145Ай бұрын
👍
@jeremiahd2209Ай бұрын
do the 2 5.56 barrels have the same twist rate?
@ThebiggamehuntingblogАй бұрын
Yes, both the 223 Wylde and 5.56 NATO rifles have a 1:7 twist rate
@liverpool6380Ай бұрын
Sig cross has a 20inch 277 fury coming out soon. Supposedly it shoots a 150gr 3000fps
@ThebiggamehuntingblogАй бұрын
Those are impressive performance specs from that barrel length and cartridge size. I'm very curious to see how it performs in real life!
@robertkeller9828Ай бұрын
Other than to sell more rifles to bad aims looking for a magic bullet, there's zero need for anything other than 30-30, 308, 30-06, and 300 win mag.