Going through it frame-by-frame, I believe it may have smacked him in the noggin on its way to wherever it's going in such a hurry. Whew. I remember my first time firing a magnum. I used a loose one-handed grip and was unprepared, and almost got a little dent in my forehead.
Glad I didn't start with one of those cannons.
Who thought that pistol was a good idea? A round that can do that should be fired through a mounted gun. I'd like to mount one on my bicycle, facing to the rear. It wuld help me up hills, I'd wager.