Magazine-Lip Marks

Related terms

AFTE Theory of Identification

The Association of Firearm and Tool Mark Examiners' standard (1992, revised 2011) for reporting tool-mark comparison conclusions as Identification, Inconclusive, or Elimination...

Breech Face

The forward surface of the bolt, slide, or breech block that seals the chamber and contacts the cartridge case head during firing....

Ejector Mark

A striated or impressed feature left on the cartridge case rim or base by the ejector pin at the moment of case...

Extractor Mark

Striations or impressed features on the extractor groove of the cartridge case, produced by the spring-loaded extractor claw during the extraction stroke....

Firing-Pin Impression

The indentation left in the primer cup by the firing-pin tip at the moment of discharge. Its shape (circular, oval, rectangular), size,...

Headstamp

The manufacturer identification and calibre marking stamped into the base of a cartridge case during manufacture. Includes manufacturer codes, year, NATO cross...

IBIS BrassTRAX-3D HD

Forensic Technology's automated ballistic correlation system for cartridge cases. Captures topographic maps of the breech-face, firing-pin, and ejector areas and ranks case-to-case...

NABIS

National Ballistics Intelligence Service; the UK police intelligence service that maintains a national headstamp and firearm reference collection and coordinates ballistic intelligence...

NIBIN

National Integrated Ballistic Information Network. ATF-operated distributed network of IBIS acquisition sites and correlation servers across the United States, active since 1999...

Explained in

• Cartridge-Case Markers: Firing Pin, Breech Face, Ejector and ExtractorParallel striated marks on the cartridge case below the extractor groove, produced by the magazine lips as the cartridge is stripped from the magazine on loadi...