One of my good buddies in LA is into SASS cowboy shooting. At a competition he was firing his Colt SAA with .45 Schofield loads when he grabbed his throat and blood oozed. It was somewhat dramatic but he was not seriously injured by the piece of lead that had come back to tag him. This at a stage where hundreds of shooters had fired, at an event where safety is emphasized and practiced by very conscientious participants.
I shoot at SASS events and get hit in the face almost every time from fragments coming back from the plate. One time I was hit just below the eye....reinforces the need for eyes and ears.