UNDERWATER CARTRIDGE WITH INCREASED STOP EFFECT BULLET Russian patent published in 2009 - IPC F42B5/02 

FIELD: weapons.

SUBSTANCE: invention relates to ammunition for small arms. Proposed cartridge comprises cartridge case, percussion cap, propellant powder charge and bullet with body, head and cavitation generator. Bullet head part represents a lead-filled shell with ballistic truncated-cone tip, cavitation generator being arranged on said ballistic tip. Note that bullet head part length makes (5.5 to 6.5)d, diametre of said cavitation generator makes (0.27 to 0.35)d, taper angle of ballistic tip makes (7 to 10)°, diametre of ballistic tip junction with shell makes (0.4 to 0.6)d, and radius of shell outer surface generatrix makes (7 to 12)d, where d is bullet body diametre.

EFFECT: higher bullet stop effect in underwater fire.

2 cl, 4 dwg