Abstract: A training cartridge including a training charge contained in a cartridge case. The training cartridge is for use in externally driven automatic weapons firing at high cadences and is to be manufactured easily and economically. This is accomplished by a cylindrical plastic insert having a central bore which accommodates the practice charge. It is introduced into a central case and is fixed therein by means of an externally applied rolled section.

Abstract: This invention relates to an apparatus for destroying sea mines, especially anchored cable mines, and to an improved mine-sweeping method. The apparatus consists of an active device and upthrust mechanisms which permit the active device to climb up the anchor chain to the mine, which, once encountered, is destroyed. In one preferred embodiment, the device comprises a hollow charge carrier with rocket propulsion which is temporarily secured to a towing device, such as a towing cable. The device is released when it encounters the anchor chain of a mine, it rises along the chain, and then destroys the mine.

Abstract: A cartridge includes a projectile which is inserted in a plastic shell receiving a propellant charge and the cartridge is expelled out of a barrel by propellant gases. The present invention resides in that the plastic shell is formed with a drive cage for a subcaliber projectile.