US Patent 6845717 Bullet with an internally carried sub-projectile

The invention relates to ammunitions for weapons of all calibers. The inventive ammunition includes a bullet which has the same caliber as the weapon or which is under calibrated, comprising a center part (2) and a rear part (1) which can carry a fin (12). The bullet has a hole (5) which is drilled in the front surface of the forebody (4) in accordance with the axis of the bullet, containing an internally carried sub-projective (6) which is more rigid than the body of the bullet and is provided on the surface with several longitudinal ribs (7). The invention can be used for ammunition with sub-projectiles in all calibers of hunting weapons with a shotgun or rifled barrel.