A fired cartridge case and a fired bullet.

A fired cartridge case and a fired bullet.

Cartridge (firearms) - Wikipedia

Forensic comparison of fired cartridge cases: Feature-extraction methods for feature-based calculation of likelihood ratios - ScienceDirect

PDF) Firearm Identification in the Forensic Science Laboratory

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Can a firearm fire different caliber bullets? - Cedar Mill Fine

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Firearms Identity NDAAsm, PDF, Cartridge (Firearms)

Are once fired empty brass casings safe for jewelry, decor or

Firearm Identification in the Forensic Science Laboratory