Since my parents retired they seem to be taking more fishing trips into bear country in Idaho and Montana. In the last year or so they have had a few interesting situations with black bears wandering into camp. They carry bear spray, but I have finally convinced them to keep a firearm in camp as well. The question is would a 450 Bushmaster be sufficient in defense against a black bear? I was planning on lending them my Ruger American that is loaded with 245gr Underwood Penetrators. While it isn't the ideal setup, my hope is that it is enough to potentially put down a bear, heaven forbid they ever had to use it.