The last 11 deer I shot were killed with Spitfire 100's. I shoot a 60lb bow with a 26 inch draw and ACC 328. Not huge KE but I have not lost a deer and the farthest any have gone after being hit was maybe 40 yards, I have also had pass through on all but maybe 3 of those deer. The only other broad head I would consider would be the NAP mechanical with the razor tip. Great braodheads in my opinion.