In load development finalization for a 16" .308 gas gun.
It looks like I will get a 155 gr TMK to 2600 fps MV, with a 10" suppressor.
So going by the rule of thumb, the 12" barrel might make 2520 fps MV with the same weight of bullet.
800 Yard Steel Rifle Range
Long Range Shooting Instruction
Memberships and Classes Available