Unfortunately, this one somehow got into the hands of a civilian, who proceeded to learn a valuable lesson, the hard way.
Watch closely (and turn up the volume) as the shooter takes careful aim at a steel plate at 100 yards with an Armalite AR50. It was apparently his intention to punch a hole through the plate. Listen to the distorted (from impact) bullet zzzzing back in ricochet and, had it not glanced off the ground first, nearly punch a hole in him.
My. My. My.
I gotta get me one of those.
Double-click on the video to activate.