I carry a Springfield Armory 5" 1911. I am completely comfortable with a standard .45ACP 230 grain load 99% of the time. This being said when I go hiking, camping, etc. I would like a little extra. The biggest thing around here is black bears. Keeping in mind I am not trolling for bear and any encounter would be up close and personal, would .45ACP+P be up to the task. This would allow me to use the same platform as normal and simply use different ammo. Would a standard 16# recoil spring be alright for limited +P shooting to insure functioning. Any thoughts and ammo suggestions welcome.