Bear Guns
A lot of these new calibers will bust your wallet as fast as your shoulder. What's worse is they may be unavailable in "the Boonies" and you'll be forced to buy 4 boxes at $100+ just to be safe. I took a .458 Win Mag (Ruger #1) to Africa and as long as you can deal with the recoil it'll knock trucks over. Very wide range of bullet weights and velocities and available everywhere. .378 Weatherby is nice too, but pricey. If you're looking for your "dream gun" before you buy, check out Searcy Rifles out of Barstow Ca. he has some real nice and "relatively cheap" double rifles with one of the strongest actions made. I think he also sells used rifles.