I am sure this question has been discussed before, but here it is anyway. I am considering a pistol for carrying while backpacking in the backcountry and while bowhunting near my home. What is preferable...a revolver (5 or 6 rds.) or a semi-automatic, magazine fed pistol? I was thinking along the lines of a 44 Mag, 45, or a 460. Thanks in advance for your input.