ROUND FOR UNDERWATER SPORTS SHOOTING Russian patent published in 1998 - IPC

FIELD: sports weapons for underwater shooting. SUBSTANCE: round incorporates barrel, blank ( sound ) cartridge used in civil weapons ( gas pistols ) and harpoon. Stable position of harpoon ( bullet ) before shot is provided by belt on harpoon made on tail part at distance equal to distance from vertex of blank cartridge to bullet entrance. Belt is made from either from softer material or material having less rigidity than harpoon proper. EFFECT: enhanced reliability of shot thanks to fixation of harpoon before shot and formation of maximum pressure of powder gases in bore. 1 cl, 5 dwg