Abstract: A method for casting a rotating band onto a projectile having a metallic ll, with a nose at one end, a closed base at the other end, and a hollow core axially formed within said shell. The method comprises the steps of (a) forming a projectile mold having three sections, a first section for the nose, a second section for the closed base, and a third section for the rotating band seat; (b) casting hot metal into the mold; (c) removing the mold from the third section so as to expose the rotating band seat therein; (d) clamping a ring mold about the rotating band seat; (e) casting hot metal into the ring mold to form a rotating band within and above the rotating band seat; and (f) cooling the projectile.

Abstract: A long rod penetrator has a severable guide fin assembly which is severably attached to the long rod and is sheared from the long rod when the fins reach the surface of the armor being penetrated by the long rod. The shear force required to sever the fins from the long rod is the minimum force necessary to ensure that the fins remain attached to the long rod during the firing of the long rod penetrator and its movement toward a target.