Can anyone tell me what this cartridge is like, ie ballistics, recoil, available loads, etc.? I've seen some nicely priced rifles chambered for it and I wonder how it compares to other calibers like 375 H&H (I assume it uses the same diameter bullets), or 338 Win Mag. Would it be a contender for the grizzley gun I'm looking to get someday? Is it based on any other cases? Is it rimmed or belted?