This is a great topic. I think I'll defer to those with much more experience than I. One such man is Marshall over at Beartooth bullets. I've used his bullets in my .357 and .44 and I love them. He seems to agree that somewhere close to 1100 fps is ideal. See the below link for a very comprehensive article on the subject.

http://beartoothbullets.com/tech_notes/archive_tech_notes.htm/61


"Putting aside game outside the lower 48 states, and looking at strictly deer, pronghorn and average black bear sized critters, an effective hunting load need not be over 1100-1200 fps with careful bullet selection. In fact, both my experience, those of hunting partners, and countless customers attests to the fact that cast bullet loads with muzzle velocities in the 1000 to 1100 fps category are truly amazing in their terminal performance!" Marshall Stanton