Patent ID: 8297187

Claim:
A training projectile comprising a cartridge shell having a propulsion chamber with a propellant charge and a hollow projectile body inserted in the cartridge shell, the projectile body having a central axis of rotation and comprising: (a) a projectile head designed to withstand the forces applied when the projectile is fired from a weapon and having a frangible ogive designed to burst when the projectile strikes a target, said ogive having a tubular portion and a head portion at an end of the tubular portion farthest from the cartridge shell; (b) a plurality of first, frangible, compartments disposed in said tubular portion substantially symmetrically about the central axis of rotation of the projectile, and a cylindrical second compartment in said tubular portion surrounding said first compartments; (c) a first marking agent for marking the position of the projectile impact with a target upon its release when the ogive has burst, said first marking agent comprising a plurality of first chemical components each disposed in a separate one of said first compartments, said first components being mixed and reacting chemically with each other when the first compartments are broken, causing the mixed components to react; and (d) a plurality of pellet masses, each disposed in a separate one of said first compartments together with a respective one of said first components, each mass being denser than said respective first component in said first compartment and serving to break the first compartment within which it resides due to the centrifugal forces on the projectile when the projectile is fired from a weapon.