Fact: Firing pins are designed to be pushed deeply into the primer (igniter) of the round. The depth of the engraving (approximately 0.005 inch)1 is vastly smaller than the tolerance of the firing pins drive depth.
Fact: In a test, the engravings were removed using a 50-year-old knife sharpening stone in less than a minute. The firearm still operated correctly after the filing.2
Fact: Even if a criminal does not file down the firing pin, they might retrieve spent cartridges. If they use a revolver, the cartridges stay with the firearm and are rarely recovered by police.
This is an excerpt from “Gun Facts” by Guy Smith, available free from http://www.gunfacts.info
on Aug 4th, 2009 at 4:34 am
emm.. really like it