Copper-coloured rifle cartridge associated with the Mauser bolt-action rifle series. The cartridge case has been emptied of its contents, with a hole drilled or punctured at the base, indicating it was rendered inert for safety. The bullet remains seated in the case but is not fully pressed in, leaving a visible gap between the projectile and the cartridge mouth.
The surface shows oxidation and green patina consistent with aged brass or copper alloy.