Well, to talk you out of it as you requested. It WOULD be useless. Rugers are not known for accuracy (u probably knew that) and the threat from black bears is pretty minimal. The thing is SO LOUD you'd have to upgrade your hearing aid after every range session. Expensive bullets and lots of powder (relativly speaking) even if you reload it's a pricey one to feed. Heavy, bad unless your a gangster wanna be, your pants will be dragged down constantly.
Extremism in Defense of Liberty is no vice.