I tried them several years ago on rabbits. Seemed pretty flemzy, bent up pretty bad after every shot, but they did the job. I've since gone to using the G5 small game points and the judo's both of which are very tough and can be used over and over and over again. Matter of fact, I have yet to ruin one of either head.
A government big enough to give you everything you want, is big enough to take away everything you have.