I have taken many Iowa White tail with PRBs
Then I certainly don't have to tell you where and how to shoot. I too have taken Midwest deer and Black Bear in Ontario. Average range and terrain is about the same. Most Black bears are not that hard to kill. Personally, I just like the mass of the conicals as mass kills. My traditional Black Bear hunting buddies, all shoot 54's. Whatever you shoot, you have to be comfortable with and experience your usual confidence. Your .50 will kill that Black Bear !!!
Be Safe !!!!