JustanObserver wrote:Jarlaxle wrote:As a barrel is used, the rifling wears down, & the pattern changes. Heck, simply running a file down the barrel will change the rifling marks.
Jar, thats not what I was talking about. The identification system didn't go by the rifling. It went by the imprint on the base of the cartrige that was left when the pin strikes the shell and ignites the round. There was a big deal made about it not too long ago how it could have helped out with alot of investigations, but the NRA fought it tooth and nail.
Your love for guns is a little unnerving. When you get the chance, I'd love to hear the story behind it. (And be honest- sometimes you walk around the house with your gun and act out scenarios, dont' you? :wink: )
The extractor marks will also change as the gun wears. I'd expect a few swipes with a file would also change it. I doubt the marks on brass fired last week from my friend's M1911A1 even RESEMBLE the marks on the first rounds it fires in the 1960's.
My reason for liking guns is very simple: I sometimes work late at night, alone, carrying several hundred dollars in cash & sometimes dozens of credit card reciepts. Also, if I call 911, the police are a MINIMUM of 20 minutes away...IF nobody called in sick, IF they find the house on the first try (hardly a certain thing), IF the patrol is nearby. If I call 911 & pizza delivery, I'll be able to feed whoever shows up.
The last line of your post does not deserve the dignity of a response.