I'm just getting into rifles, and wonder if you guys can help me out with some caliber questions. What is the difference between .308 and 30.06? For North American game, is one better than the other? Also, if I wanted to take my rifle to Alaska to hunt larger game and/or bear, would one be better than the other. I don't think my wife will let me expand my rifle collection to the same extent as my handgun collection, so I'd like something pretty versatile. Thanks for the help.