I was shooting at a Friday night rifle league match tonight with my AR, and one part of the course required you to get up real close to a wall to shoot an array of targets. Well, one of the first shots I fired the brass bounced off the wall and got stuck between my arm and the wall. I didn't want to move and give up time on the targets, so I just fired until I was done with the array and moved on. Now it really hurts and it looks like there's going to be a blister. On the bright side, my 3rd run was the best run of the night out of the 12 or so shooters there.