M193 5.56 (223) tends to tumble then break at the cannelure. Makes a devastating wound on rice Burners and left handed butt wipers too. They tell me...my Marine SIL favored the 77gr HP on hajis. I killed an 80# shoat ( not in same league as an old boar, I know) with a 50gr XLC from a CZ 527 221 Fireball. made a 50 cal hole all the way through. I was down in Hanco's country, right out of Livingston, ha.
