I wish Mr Chiaramonte knew a little bit about his subject before writing an article like this. He states: “The telltale mark theoretically allows law enforcement investigators to trace the bullet to the registered gun owner.” Law enforcement is not going to track down any perpetrators if they find a “bullet” because the the marking is put on the shell casing by the firing pin.
OK, I will correct myself, I suppose they could match a bullet with a shell casing they find at the scene.