Patent ID: 7814837

Claim:
A bullet for a small, medium or large caliber gun, with the caliber of the bullet of the type comprising an internal shaft with a rigidity greater than that of the body of the bullet, disposed in a blind hole drilled in the body of the bullet along its axis and which opens on the front ogival head of the bullet, characterized in that the internal shaft is set back from the orifice of the hole, and wherein the orifice of the hole situated on the axis has a smaller diameter than that of the internal shaft, and the wall of the ogival head of the bullet body comprises one or more deformation notches close to the orifice of the hole, the one or more deformation notches made by a narrowing of the ogival head, which comprises a nose and a rear portion, separated by the one or more deformation notches, and a cavity of conical or cylindro-conical shape, with the cavity having a large base, which is delimited by the front face of the internal shaft, and with a diameter of the cavity being larger than the diameter of the hole encompassing the shaft, and with the ogival rear portion smoothly narrowing to the base of the nose of the ogive, with the base widening to a cross-section slightly larger than the top of the rear portion.