| 摘要 |
<p>The invention provides an ammunition cartridge (1) comprising a casing (5) and a bullet (3). The casing (5) has a tubular body which is closed at one end and the other end is attached to the bullet (3). An internal surface of the casing (5) attached to the bullet (3) is provided with a coating of copper oxide. The copper oxide may be black, and can be arranged on the inner surface and the outer surface of the casing (5).</p> |
