I'm new to hunting and plan on tagging along with some friends to go deer hunting this season. This past weekend I sat through my first hunter education class. Very informative and not as bad as I thought it would be. But now I want to make sure my son has the chance to get into hunting and I want to take him squirrel hunting. What is firearm would be best for this situation. Firearm would be used for plinking/target shooting during off season. Would a good .22 rifle be best or a shotgun (gage?) Thank for you help.