Originally Posted by Wise_A

I wouldn't do it, mostly because it's an incredibly awkward movement. Manually cocking the hammer on a 1911 with a full-power (23#) mainspring is difficult even with two hands. Doing it with one--and I experimented on my match gun for some rules-avoidance purposes--is at best unreliable.

If one of your hands is damaged to the point where you can't grip the slide, the situation is quite dire. Use your clothing. Use an edge. Use jam it into the heel of the palm on your busted-up hand. Tuck it between your upper arm and your ribs. Drag the slide on some rough concrete if you have to.

It doesn't take a lot to rack the slide against the hammer.