Abstract: The technical field of the invention is that of slipping driving bands fitted to projectiles of any caliber fired from a rifled barrel. The slipping driving band according to the invention consists of a driving band boby 8 and a front ring 7 arranged in a circumferential groove 6 of the projectile 1 and separated by an axial gap 12, and is characterized by the fact that the bottom of the groove 6 has a tapered seat 9, the angle of which opens towards the rear of the projectile and that the driving band body 8 has an internal profile complementary with that of the tapered seat 9. The present invention is particularly suited to discarding sabot projectiles of medium caliber.

Abstract: The technical field of the invention is that of spin-stabilized subcaliber rojectiles including a core integral with a sabot, and a sleeve.The sleeve includes a rear annular area lodged in a corresponding groove in the sabot and providing gastightness, wherein:the sabot includes, toward the front of the projectile, a cylindrical crown having an edge bordering the band groove;the crown includes at least three notches, separated by castellations, and extending axially at least to the band groove;the sleeve follows a profile complementary to that of the sabot, so that it enters into the notches;and the projectile possesses means for separating the sleeve into several sectors under the effect of the centrifugal force, at the time the projectile leaves the gun muzzle.Application to medium-caliber ammunition.