.357 is fine for deer and I wouldn't have any issues using them against blackies either. In reality, a heavy .357 penetrates "about as well" as a standard .44 due better sectional density. IMO again.
I roll my own. A 180gr XTP back by a good dose of BlueDot for about 1200 fps. My state requires expanding bullets on deer. Try Buffalo Bore heavy loads and check accuracy but for IMO most loads from 158grs on up should work well. And yes, those 180 xtp's damage some meat.