Tried my new Montec G5 100 grain broadheads yesterday and they definately do the damage. The doe's heart exploded upon impact (kinda graphic) and blood shot out everywhere. She went bout 30 yrds and dropped. They leave alot bigger enterance and exit hole than I expected too. When gutted she didn't but maybe a saltshaker full of blood left inside her. I've been a muzzy guy my whole life but i'm now fully sold on these montec broadheads.