If you have shot a .454 and feel that it's controllable in your hands then you wouldn't be badly armed with one. Don't go too light or small or you'll end up with something that is very difficult to shoot more than once. Even with a handcannon like the .454, don't fool yourself into thinking one shot will always be all you need.
Personally (knowing my own limitations), I'd go with a medium sized .44magnum like a 5" 629. That's a pretty carryable package that doesn't compromise shootability too much but still packs a reasonable amount of punch.
Personally (knowing my own limitations), I'd go with a medium sized .44magnum like a 5" 629. That's a pretty carryable package that doesn't compromise shootability too much but still packs a reasonable amount of punch.