That bullet that is made of brass and lead, must have the ability to insert itself into the chamber without the aid of a human.
Or maybe that gun that is made of steel and wood {or plastic } must have the ability to insert that bullet into it's chamber without the aid of a human.
Then that gun that loaded itself with a bullet, has the ability to pick itself up off the floor, table or get out of a locked gun safe, aim itself at something or someone that it wants shoot that piece of lead at, without the aid of a human.
Then in its final act of desperation it can pull it's own trigger and send that lead down the barrel without the aid of a human.
Liberal critical thinking at it's