GOOD Question .. I fear the Bear wins, unless it's a Small one and just one of them ..
I feel a 45ACP is to slow .. If I only had a 10mm or a 45acp for that Job , I'll take the 10mm ... I Can make it go 1250 FPC ... 45ACP at less than 900 FPC, GREAT on Human weight Targets same as a 10mm...