Those round balls did well. To add perspective to the round balls and too, the .50 cal slugs in comparrison, at 170 yards impact, launched at almost the same muzzle speed, a pure lead .535" round ball punched through an inch of wet, but hollow hair, 1/4" skin, 1" of connective tissue, muscle and fat, penetrated a 3/8" thick moose rib exiting the centre of the rib to punch though the left lung, centre the 10" to 12" diameter heart full or 1/2 full of blood, exit the heart and punch through the right lung, then through the 3/4" thick muscle between the off-side ribs, 1" of connective tissue, fat and muscle layer underneath the hide, stretching the hide out some 12" but lacking the powder to punch through it, getting slapped back against that connective tissue and stop. The moose bolted, dropping 40 yards from impact site, mid-stride, bled out into his own cavity.

: Those .50 cal. slugs of Yogi's are indeed impressive big game bullets.