i shot my deer bedded looking strait at me this year with a muzzy mx3 and it went thru the neck thru the spine and stopped about an inch on the other side of the spine inside the body cavity shoot 340 ics hunters thru my maxxis 31 with a 27 and a half inch draw that deer didn't take a single step from where he was bedded! i have also head shot 1 before with the same set up he dropped like i shot him with a rifle and my arrow stopped at the fletchings from 30 yards needless to say i like the mx3 muzzys the best for fixed blade broad heads