NAP Gobble Stoppers. They have a blunt tip in front of the blades. I like the blunt tip, it really knocks them. It hits them a lot harder than the heads with sharp tips. I
have shot several with fixed blade heads, muzzy, slick trick, rocky mountain and thunderheads. They all die but usually run off. The ones I've hit with the gobble stoppers, it knocks them over and hurts them pretty bad.

personally i sure like the guillotine, whacks the neck and insta drops em.no damage to the breast

I like the Magnus bullhead, thicker blades than the guillotine and you can practice with them. My buddy used the Aftershocks that Average Joe's is talking about and it did one heck of a job.