Thread: 308 twist rate

Originally Posted by shooternz

The standard .308 twist is 1:12" some match/Sniper barrels are 1:11" to handle 175 SMK's any faster twist is only for the real heavies like 230 grains
if you only plan on using subs occasionly it would make sense to build it to handle the 150 to 180 grain bullets that are the standard for the .308
subs only have a limited range no matter how streamlined they are they drop like rocks.

I don't know about the twist rates for subsonic rounds, but I am surprised that 1:7 or 1:8 are recommended.
I'd have thought this was too fast.


I'm a target shooter. I get my 308 barrels in 1:10, 32".
I shoot 155 gr and 185 gr projectiles with the 1:10 barrel, knowing they will shoot heavier if I wish.

My first 308 barrel has fired over 6,000 155 gr projectiles and is still very accurate.