An Off duty Sheriff’s Deputy in Aurora, Colorado got in a shootout with two robbery suspects. One of his rounds struck a shooters gun, entering the barrel and impacting a chambered round in the gun. That must have stung. Investigators are calling it a one in a billion shot.
I don’t know what the actual odds are but that seems a little high. I managed to hit the fore stock of a 30-30 rifle during a shoot out.
During training we used graphic targets that could be modified with inserts, one time the suspect is unarmed. The next time he is armed with a pistol, next time with a knife. It was my experience that as soon as we put a weapon in hand, the shot pattern would tighten up with the weapon as the focal point.