Quite the collection. I always wondered how they do ballistics matching -- I learned it's from the tooling marks on steel barrels which get transferred to the cartridges & bullets.
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Inside the FBI Reference Firearms Collection of 7,000 Guns
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Very cool collection, be nice to work in that department and handle all the old gangster guns.
WOW Very Cool
What I wonder is how do they differentiate one pistol from the rest as manufacturing becomes more consistent and the prolific numbers of a model are all made almost exactly the same. One example, Glock 19. How can they tell your Glock 19 shot that recovered slug over my Glock 19? And what about polygonal rifling? How does that mark a bullet?
Good question. I wonder if those tooling marks he talked about in the video are so microscopic that no two barrels are exactly the same. So that means if you recover a suspected murder weapon for instance, you could fire a few rounds from it and see with a microscope that your slugs & casings match the crime scene evidence casings.
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Very neat. I could spend weeks there nerding.
gun forensics is largely hollywood bull**** ive come to find
Hmm... said the FBI Firearms Forensic Examiner?
A Primer on the Procedures and Validity of Firearm and Toolmark Identification
I read a book awhile back about a father getting his revenge against pedophiles after his daughter fell victim to one. He ended up getting his revenge by going after people on the sex offenders list & killing them with a Glock pistol.
Not sure how accurate the information was, but it stated that the Glock couldn't be traced due to it's polygonal rifling. Given how cheap barrels can be, wouldn't it be easier to just replace it and pitch the other in a river?
