All I can tell you about the penetration power of a roundball is at over 80 yards, a .530 ball with 80 or 90 grains of Pyrodex RS passed through one deer killing it, and then into a second one, breaking the spine of that deer. The ball was lodged under the skin on the other side of the spine on that second deer.

Pluckit ... in what part of the deer did you recover that ball? Also how badly deformed was it?