| 摘要 |
The breaking-projectile bullet comprises a cartridge-case (1), powder-charge (3) inside the cartridge case and a breaking projectile (4) having a remaining part (5) fixed in the cartridge case (1); a projectile part (6); a breaking surface (8) to join said projectile part (6) with said remaining part (5) and to allow the projectile part (6) to become detached from the remaining part (5) along said breaking surface (8) when the compressive force affected by the increasing pressure (p) of the evolving powder gas inside the cartridge case (1) to a surface (S1) of the projectile part (6) exceeds a threshold, and a gas channel (7) connecting said surface (S1) of the projectile part (6) with the inside of said cartridge case (1). Said projectile part (6) comprises an additional accelerator surface (S1') to provide a surface step (S2-S1) for a secondary acceleration force when said projectile part (6) has become detached from the remaining part (5) along said breaking-surface (8). |
