Atomic_Dog9601
Member
I am looking for the best ammo for a AR-15 Carbine w/ a 16" 1:7 twist barrel and full auto bolt carrier group. General range 50-100 yd. 150 max.
I am curious as to the proper grain and projectile type that would be best used with the barrel twist.
I am curious as to the proper grain and projectile type that would be best used with the barrel twist.