1. pwc001

    AR barrel 1in7 twist

    I have a 16" heavy barrel 1in7 twist AR. It seems to hate the lighter bullets, I am planning on going to some 75gr Amaxs, anyone had good luck with these using varget. It will not group at all with 55gr Vmax factory ammo. Even Win White box 62gr shot like shit, no group could be seen with either...