蹴しゅう子し痕こん

noun

ejector mark (on a cartridge)

Technical term in firearms forensics or ammunition examination. Refers to the mark left on a cartridge case by the ejector mechanism. Compare with 抽筒子痕 (extractor mark).

See also: 抽筒子痕

• 現げん場ばで見みつかった薬やっ莢きょうの蹴しゅう子し痕こんを分ぶん析せきした。

  We analyzed the ejector mark on the cartridge case found at the scene.