I have used 7.63x39 FMJ , 52,55, and 62grn 5.56x 45mm FMJ, and 7.7mm .311cal FMJ. All have yeilded great results on soetheastern white tail, coyote, and pine woods rooters or hogs for me. I never take a shot through the body, only the head and base of the skull line though. I did put a round...