First....I would never intentionally damage any firearm, That out of the way...Over the years (more than most on this forum), I have encountered or caused dry fire damage in my rimfire arms. I have seen damage in revolver cylinders, the rear of semi-auto chambers, and even a single shot rifles. Over the years I have read MANY threads concerning the damage, and how severe it is. I must confess, on more than one occasion, I have simply taken an appropriately shaped stone, removed the offending burr and proceeded on as though life was going on as normal. Sooooo, in a nut shell...What am I missing? Other than the obvious, firing pin, firing pin stop, chamber, what damage is being done? Prior to closing, I have never seen/caused any extreme damage, simply the somewhat usual burr into the chamber area.