lloyd, you certainly couldn't go wrong with your 475, or your 500 either, i would however use my 454 with the 320 grain corbon penetrators. almost as fail proof a bullet as exists, has killed everything up to elephants. in fact, anything that round or buffalo bore rounds wouldn't kill?. great trajectory. i sold my 475 for the simple reason that it didn't do anything the 454 didn't do and never saw a difference with anything hit with either. as i go through the linebaugh seminar results, doesn't really outpenerate the best 454 loads, the linebaugh load that penetrated so far one year was outpenetrated by a 454 round when the box was bone and paper, not saying one is better, just that they're all pretty equivalent. anyway, with the advent of the factor 300+grain .44 mag rounds, if you're not competing with the .454 or 475 really doesn't add much. it does it thing and i'm sure if you stick to cast bullets then it's as good as any .454 or .475, however the .480 is just limited compared to those two rounds and if you got 20 other pistols then no big deal. however, if you're getting that one big bore pistol then there's better choices. btw, i find many jacketed and monometal bullets perform quite well and have had failures with factory hardcasts on game, so far no failure with barnes xpb, hornady xtps, or the FA bullets on game.
btw, if i was on the hunt of a lifetime on some type of dangerous game, wouldn't it be silly not to use the punch bullets or the corbon penetrators, had the 475 buffalo bore 420 grain load blow into about 100 pieces on a cow elk shoulder 3 years ago, also had a 45/70 hardcast blow apart this year on a cow elk shoulder. both required 2nd shots. hardcasts are not infallible imho anymore than the best jacketed are. i've not had a failure or serious deformity with the punch, penetrators, or the xpb bullets when fired into piles of sand and gravel. haven't yet had a hardcast survive that.