R15 .223 ?? If so its more about tiwist rate determining the maximum weight of the projectile you can use then also what you wish to shoot with it.
Barrel Twist Rate 1:14" 1:12" ...
Type: Posts; User: Happy
R15 .223 ?? If so its more about tiwist rate determining the maximum weight of the projectile you can use then also what you wish to shoot with it.
Barrel Twist Rate 1:14" 1:12" ...