These broadheads are no joke.Both deer i shot this year sounded like a 2x4 being smacked against a concrete wall.I hit a double lung on a doe and fractutured her ribs so bad they splintered into the internals, then shattered the other rib on the way out.The second deer i shot was an 8pointer which i hit quartering away and the shot exited out the bottom of the shoulder blade with a complete pass through. I tried to get info on these heads before i used them but i guess they aren't very popular yet so i just went ahead and bought them.Truelly an awsomely accurate head and devastating bone crushing power i think would rival that of the muzzies.