Many years ago we were shooting targets one day and this guy that worked with us wanted to shoot my rifle. He put his eye right on the scope and we told him to back off three or so inches, but he told us that he had been in the military and had shot lots of rounds. He pulled the trigger and blood went everywhere, it looked like you took a sharp round cookie cutter and hit it on his eye with a hammer. Perfect circle. It could not of happened to a better guy.