I often don my 1943 bone stock Remington Rand 1911A1 with a 8 round mag, when going into the black bear inhabited woods at my deer camp. Though when hunting big game I prefer my old model Ruger Bisley Vaquero in .45 Colt that I hand load up to magnum velocities using 250 or 300 grain bullets. If I lived in big bear Alaska I would keep this at the ready and save the 1911 for 2 legged varmints
I carry a 45 super conversion for a trail gun. 255 gn at 1100 fps, I still feel unprepared for an encounter with a brown bear.