Rosie, you will NOT be popular with a muzzle brake! Bring the .300WM, and if you're going to be doing a lot of walking, then replace your stock with a Boyd's laminated stock for $120 delivered to your door. Just put the barrelled action into the lighter stock and you'll be a lot happier of a hiker, lol! The .300WM can handle any north american game with a good bonded bullet. Get a good set of heavy weight merino wool underclothes, they're comfortable, warm, and stink resistant. Don't forget sock liners and good wool socks, inside really warm waterproof Gore-tex boots. Dress in layers, and have fun!