M1A or AR10?

**orionz06** · December 12th, 2010, 01:41 PM

Originally Posted by NightRocker

M1A has the 22" barrel, which gives higher volicitiy and energy to a round, just someing to throw out there.

What is the point of diminishing returns for .308 velocity?

**NightRocker** · December 12th, 2010, 01:46 PM

Originally Posted by orionz06

What is the point of diminishing returns for .308 velocity?

It's simply a difference between an M1A and an AR10.

**orionz06** · December 12th, 2010, 05:03 PM

Originally Posted by Ultramagnus

sniper section of unit i'm in has the SR25. those guys say the SR25 is the only semi auto 7.62 rifle worth considering outside of a M14.

The little bit of reading I have done tells me the SR25 is getting close to jumping ahead of the SCAR 17 on my short list of guns...

**bricktop** · December 12th, 2010, 07:43 PM

Originally Posted by orionz06

What is the point of diminishing returns for .308 velocity?

You'll probably get worthwhile velocity gains up to a 26" barrel or so (some benchrest shooters may go up to 30"), depending on the load. Of course, a battle rifle would never have a barrel that long for practical purposes. You can get 18.5" barrels on M1A/M14 with the Scout version, and 16" with the Socom.

Originally Posted by orionz06

The little bit of reading I have done tells me the SR25 is getting close to jumping ahead of the SCAR 17 on my short list of guns...

You may like something like this then, it's definitely on my "want list"."