It was a steep quartering away shot. The bullet shattered the rear leg and penetrated all the way up through the diaphragm.
Bet that was a fun field dressing job!
I shot this year's buck in the chest and the bullet just clipped the top of the heart ..... The buck reared up and turned 3 circles on his hind legs, pawing at the air with one front leg (the other leg was broken by the bullet) before falling over backwards, DRT. Wierd.