A comment was made on another thread that we should be thankful that idiot was using a bump fire stock as aimed fire would have been more effective. I tend to agree. This got me to thinking about what ammo he was using. I'll bet it was mil surplus stuff like green tip which I would guess would be less destructive than soft points or HPs. Won't stop the dumbazz politicians from banning the bump fire stocks and I'll bet mil surplus ammo is next.