초록

The invention is a jacketed projectile for a round of ammunition wherein the jacket is deformed at least partially elastically when the projectile is driven through the barrel of a gun, the core of the projectile remaining undeformed.

대표청구항 ▼

A projectile for a round of ammunition, the projectile capable of being driven through a barrel of a gun wherein the barrel has an inner diametric surface whose radius is smaller than the radius of a largest diameter zone of the projectile, wherein the inner diametrical surface of the barrel defines

A projectile for a round of ammunition, the projectile capable of being driven through a barrel of a gun wherein the barrel has an inner diametric surface whose radius is smaller than the radius of a largest diameter zone of the projectile, wherein the inner diametrical surface of the barrel defines a generally spiral shaped groove, the groove having a bed surface radially outward of the inner diametrical surface, the projectile comprising: a core member removable from the projectile; a jacket surrounding the core member and engaging the inner diametrical surface when the projectile is in the barrel, the jacket having a rearward end and a forward end; the jacket defining a bore having an internal thread and a rearwardly facing abutment surface; a core external thread on the core member, the core external thread being engaged to the internal thread of the jacket; a forwardly facing abutment surface on the core member, the forwardly facing abutment surface being oriented toward the rearwardly facing abutment surface; the bore defines a counterbore having a closed end and the rearwardly facing abutment surface is a shoulder between the bore and the counterbore; a stem extends from the core member to the closed end of the counterbore; the core member is axially spaced from the shoulder; a portion of the jacket forming a groove engagement member when the jacket engages the inner diametrical surface of the barrel; wherein the core external thread is threaded oppositely to the rifling groove.