I'm far from being an expert on the subject [or any other subject], and while I do favor a .45 for everyday carry....I'd want something a bit more stout if I had to venture into bear country. I'd think that a Ruger .454 Alaskan would be worth looking at, and that would be backup for something hot and shoulder-fired.
Seen on a bumper sticker: "Exercise. Eat right. Take vitamins. Die anyway."