casing ejection

The act of ejecting shell casings from a firearm. Typically casings are ejected automatically from most modern self-loading weapons after a round is fired.

However, this also applies to the act of manually ejecting casingsーsuch as by cocking the slide of a semi-automatic handgun or pump action shotgun, as well as by opening the cylinder of a revolver.

Examples

• Danbooru post #7809228
• Danbooru post #7731087
• Danbooru post #61390: Manual ejection

This tag implicates shell_casing (learn more).