ARTILLERY PROJECTILE Russian patent published in 2007 - IPC F42B14/02 

FIELD: armament.

SUBSTANCE: the artillery projectile has a body with a driving band made in the form of a ring installed in a recess on the body with a clearance in the radial and axial directions for its turning relative to the projectile longitudinal axis. A circular shoulder is made on the front end face of the driving band on the side of the inner surface, the shoulder forms a cavity between the body and the driving band, the cavity is open on the side of the projectile rear end through the radial and axial clearances.

EFFECT: reduced angular velocity of the projectile at movement in the gun bore.

2 dwg