Are you concerned with which one will penetrate the dirt behind the animal deeper than the other or are you talkin bone. You won't go wrong with either and both should give you pass thru's...depending on your equipment which has more to do with the amount of penetration you'll get with either so ease your mind and pick one, you'll be fine either way all though I tend to favor the Muzzy line from 10 plus years of great results.

<font color=blue>Good Luck and Good Shooting</font id=blue>

<font color=red>Rob</font id=red>