If I'm i bear country, I'd load extreme penetrators in a glock 19 with a +3 mag extension and have 19 rounds of deep penetrating ammo
Just use a 17 magazine instead of fooling with extensions, or even a 22 round Magpul or ETS mag. Those mag extensions can get bumped or knocked off at the worst times, turning your gun into a paperweight if you don't have time to reload. I didn't believe it until it happened to me, fortunately not in a dangerous situation.
