The only animal likely to come within range of a pistol will probably be dead. Of course it could be used to scare a polar bear except I don't believe they issue pistols in Canada which,
AFAIK, is still friendly.
The only thing you will probably be able to hit with any accuracy is your buddy or yourself.
PS
You are unlikely to be in a survival situation on modern operations. You will either be rescued pdq or go into evasion mode. Hunting will be the last thing on your mind.
Personally I would have preferred a parang, machette, or a sterling SMG
