A bullet is formed with a hollow interior compartment which contains particles. The bullet side-wall surrounding the hollow interior compartment breaks after impact with the target to release the particles from the hollow interior compartment. Preferably, each particle in the hollow interior compartment has a core substance and a coating surrounding the core substance. The coating is designed to release the core substance after the bullet contacts a target. The core substance swells when in contact with blood, which may be time delayed in order to enter the blood stream.
F42B 12/36 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling
F42B 12/46 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing gases, vapours, powders or chemically-reactive substances
F42B 12/54 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing gases, vapours, powders or chemically-reactive substances by implantation, e.g. hypodermic projectiles
F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
patents