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Cartridge Case (7788259910)

Cartridge Case (7788259910)

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Summary

This cartridge case shows the three distinct marks, or 'signatures,' impressed on its surface when it was fired by a gun: the firing pin impression (FP), the breech face impression (BF) and the ejector mark (EM). NIST's standard casing ensures that forensic labs can accurately match signatures on shells found at crime scenes with images in a national database.
See also www.nist.gov/pml/div683/casing-080812.cfm
Credit: NIST
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Date

19/03/2012
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Source

Cartridge Case
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national institute of standards and technology
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