Did the firing pin just get stuck in the firing pin indent on the cartridge or did it actually pierce the primer?. If it has pierced the primer then the tip of the firing pin may be either gas cut or have a divot in it from the escaping gas. By divot I mean a slight bulge near where the gas had cut into the firing pin. Usually when a firing pin pierces a primer high pressure gas escapes through that hole and usually whttp://forums.nitroexpress.com/grabnext.php?Cat=0&Board=single&mode=showflat&sticky=0&dir=new&posted=1431837388&page=0ill gas cut the firing pin. Frank