BULLET PROJECTILE FOR SMOOTH-BORE WEAPONS Russian patent published in 2019 - IPC F42B7/10 F42B30/02 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to bullet projectiles. Bullet projectile for a smooth-bore hunting weapon comprises a body; in the front part of the body there is a cavity for an injuring part, in which a damaging part is laid, and in the back part of the body there is a cavity forming an obturator in the form of a cuff. Cuff has two sections with various thickness of its wall, at that the section on the end of the cuff has wall thickness smaller than the next section located closer to the front part of the bullet projectile. On external surface of body there are twelve screw ruts. At the end of the outer surface of the collar there are two grooves for bleeding air when mounting the bullet projectile in the sleeve. Dimensions of grooves are smaller than dimensions of individual powders, screw grooves are made in the form of screw rectangular longitudinal slots to ensure rotation of projectile in flight around its axis. Body is made of high-pressure polyethylene by means of mold with simultaneous pouring of high-pressure polyethylene into cavity for damaging part, in which steel roller is laid with formation of embedded part. At the front end face of the body there is a hole for bleeding air when pouring polyethylene into the cavity for the striking part, in which the roller is laid.

EFFECT: improved ballistic characteristics, dispersion cross-section, wear resistance and presentation.

3 cl, 5 dwg