Back when I was much younger than I am now, I spent some time as a fishing guide in AK. I fished the rivers and creeks from Talkeetna to Denali. I had a short barreled 870 loaded with slugs that I kept slung over my shoulder. I am much better with a shotgun than I am with a handgun, and a rifle at the ranges that you would likely be using at in a kill the bear before it kills me scenario is impractical. I also carried a 454 casull in a shoulder holster (just in case). I had the 870 loaded with slugs and always kept a handful of 7 1/2s in my pocket to use as warning shots when bears got a little too curious or in case I ran across some grouse or ptarmigan. Never had to shoot a bear, but I did have to fire plenty of warning shots. It was not unusual to see bear tracks over the top of your tracks when you were walking out. The scariest places to fish were the small creeks 20-40 feet wide see where you couldn’t see more than 4 or 5 feet past the bank because the trees and ferns were so thick. Had more than one close encounter in places like that. Once watched a grizzly chase a black bear across the Susitna river about 50 yards downstream of me and heard the grizzly catch and kill it less than 75 yards away.