I am planning a trip to Alaska for late summer. I haven't nailed down the details yet, but I think I want to do a canoe trip down a river, probably somewhere in the interior. I want to float down the river in a canoe, take pictures, fish, and do some opportunistic hunting. In other words I want to buy a tag for Caribou, Moose or whatever is legal that time of year, and shoot one if I see one. Other than Ar-15's and a muzzle loader, my only big bore rifle is a Remington 700 ADL in .30-06. I am thinking it is probably inadequate for taking Moose and Caribou reliably. I am also thinking it is grossly inadequate to reliably stopping an angry Grizzly who wants me for lunch. This would appear to neccessitate the purchase of a new rifle (what a shame ). I am thinking about something in either .338 Winchester Magnum or .375 H&H magnum. The .375 hits harder, but the .338 will shoot flatter. Does anyone have experience shooting at such large beasties? What's the best rifle to get?