My son and I were going out to break som pigeons a while back. We stopped a wal mart for shells. They had several youth size shotguns. I'd like to get him one. He is eight and smaller than average. My question is, which guage? I have no experience with anything but a 12. I was concerned the 20 would be too much recoil. I've was also concerned the 410 would be challenging to hit with. His experience so far is limited to his 22. He is a great shot with it. But, has not shot anything larger yet. I would very much like it if he could participate next time we shoot clays or pheasant. Any suggestions on make and model would be appreciated too.