6 prc July 8, 2019 16 32 64 128 6 prc cartridge 6 prc ammo 6 prc ballistics 6 prc load data 6 prc vs 6.5 creedmoor 6 prc vs 243 6 prc vs 308 6 prc primal 6 prc rifle 6 prc brass 6 prc barrel life 6 prc reamer 6 prc dies 6 prc barrel 6 prc recoil