Patent ID: 7311046
Filing Date: 2007-12-25
Classification: F42B

Abstract:
1. Projectile for infantry ammunition comprising a projectile core made of hardenable steel, tungsten, metal carbides, sintered metals or ceramic material, and a metal casing, wherein the metal casing is a case, which is open at the front end and is drawn from behind onto the projectile core, wherein the projectile nose projects from the metal casing, there is disposed on the projectile core a necking, into which the open front casing end projects, at least one relief groove is disposed on the outer periphery of the projectile core in a direction traverse to a longitudinal direction of the projectile, the metal casing rests in the region of the at least one relief groove against the projectile core such that the projectile has at least one relief groove on an outer periphery of the casing, such that the outer periphery of the casing in a region in front of the at least one relief groove and in a region to the rear of the at least one relief groove is in the form of a cylinder having a cylinder diameter equal to a caliber of the projectile, that the casing comprises a base and a cylindrical part, that the at least one relief groove is provided in the cylindrical part, and that the base of the metal casing has a greater thickness than the wall thickness of the cylindrical part.