The G27 is no slouch, it's very concealable yet still packs a good punch. I've chrono tested 180gr at 1125 fps from mine so that's not bad at all. Sure it's no long gun, but for the size it packs a punch. 200gr is a great option too, and here's a good choice from Buffalo Bore:
I would opt for hardcast, I'm sure DoubleTap still offers their 200gr WFNGC hardcast, which would be an even better option since that's one fine bullet.
A 200gr hardcast around 1000 fps is going to penetrate well. Oh yeah, pack some bear spray, can't fathom having a bear thread without mentioning that.