NE Hunter, whatever caliber you get him is not so important as how well he can shoot it, and how mentally ready he is to hunt. My 12 year old wants to hunt also, but he was "too busy" with other things to want to go to a hunter's safety class. He actually shoots my .30-06 and claims no discomfort, although he doesn't shoot it quite well enough yet that I would let him shoot at an animal with it. I asked him if he wanted to go with me this year just to be with me, and he said probably not, he would get bored if he could not hunt also. This tells me, sadly, that he just isn't ready for hunting yet; I really believe that kids should demonstrate some responsibility and drive before arming them and bringing them into the woods.

Sounds like your son will be a fine hunting partner some day. Sure hope mine will be too.