it's purpose isto cull the population but i dont see what wrong with shooting them with a 22 or a 308. dead is dead. you arent going to eat them anyways or at least no one i know eats them.and i dont see why you cant have a good time while culling them.. hunting should be fun not work. and you should have a good time when doing it. if you arent you should not be doing it. jmo. and i understand others have theres.