I have taken many Mule Deer and Whitetail, bucks and does here in Montana with Nosler 55gr out of my Swift with no problems, even took a speed goat at 312 yards dropped him instantly. But if you make a poor shot things could get real ugly, my father in law made a bad shot on a coyote, (behind the ribs) and it pretty much gutted it out like you would a deer, an it still needed a follow up shot. So pick your shot.