Hi : youhave yourself a great gun and bullet combo, and it wil do anything you want it to do.. when I got mine, I just shot a few times, very cuatiously each time out and took a break between strings of fire, got a glove on, pleanty of hearing protection, and mentally prepared to practice the right way... got to some lower powered loads as well when I feared not having enough shooting time to please my accuracy requirements.. with the 475 now, I went straight to lighter loads, and am really pleased with what they will do ... ahve shot the full power loads and they are also a handfull.. I would just shoot a lighter load in it for now, and you may find that you do not need to go up to anything else unless you just want to shoot farther and can do so ... or you get the chance for big big stuff to shoot.
good luck with your fine purchase...
whatever you do.. avoid getting discouraged.. and avoid a nasty flinch.. the reduced loads with the ability to shoot a cannon load is a great way to go.. if I had one gun I would have a big bore and load it down and load it up when I decided I could or needed to but would not shoot it full power very often for the first couple of years.. unless I took the time to do it like the first 454 I got after shooting 44 for six or eight years first.... five slow shots, stop ... five more stop.... five more stop... lots of concentration is important, and think through the shot in your mind : see yourself shooting the gun and the recoil being no problem ...
works for me most of the time..
dk