Like others I use the ace hex head or nutters on most small game the size of gophers. I haven’t had very good luck with any type of blunt on critters larger then them. For larger critters such as rabbits/hares, geese, ducks, pheasants, and grouse I use broadheads. Once on a moose hunt I shot several snowshoe hares, with a #63 longbow (glass), in the head with rubber blunts and it didn't faze them; they just hopped away. Also, in addition to better success there is less damage to the meat.