Oversize Firing Pin Damage

[kurusu]

Luger firing pins don't tend to be too long. It can happen of course but it's not common. The pierced primers, in a Luger, generally occur from excessive headspace.

Either from out of specs ammo, more common on the .30 Luger even with factory loads, or from a mismatched breech block that wasn't properly fitted to the gun.