Cartridge with improved penetration and expansion bullet
AssigneeVista Outdoor Operations LLC
InventorBryan P. Peterson
Life of this patent
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Abstract
A cartridge with a steel component bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the cartridge comprises a steel component, a lead core, and a copper jacket. The lead jacket having a leading edge portion that extends to the cylindrical mid portion. The steel component bullet may have a forward pointed ogive portion, a cylindrical mid portion, and a tapered rearward portion. The rearwardly facing surface may be concave. The leading edge portion may have a taper oriented in a direction opposite the taper of the ogive portion of the steel component. Structure to inhibit spin is positioned on a rearward face of the steel component. The bullet having a concave rear face.
Claims12
A pistol cartridge comprising a cartridge casing with an open mouth and an interior, propellant disposed in the interior of the cartridge casing, and a bullet secured in the mouth of the cartridge casing, the bullet having a length and comprising:
- a forward component made of a first metal comprising steel, the forward component having forward ogive portion with a forward tip, a cylindrical mid portion adjoining the forward ogive portion, and a rearward portion adjoining the cylindrical mid portion opposite the forward ogive portion, the rearward portion with a rear end corner, the cylindrical mid portion diametrically larger than the forward ogive portion, the rearward portion having a maximum diameter portion positioned adjacent the rear end corner, the rearward portion having a curved taper extending from the maximum diameter portion to the cylindrical mid portion, the maximum diameter portion extending less than 15% of the length of the bullet and having a diameter greater than the diameter of the cylindrical mid portion;
- a jacket formed of a second metal comprising copper and defining a cup, the steel component seated in the cup, the jacket having a leading edge portion positioned at the cylindrical mid portion of the forward component;
- and
- a lead core disposed in the jacket rearward of and in direct contact with the forward component.
A pistol cartridge comprising a cartridge casing with a forward mouth and an interior, propellant disposed in the interior of the cartridge casing, and a bullet secured in the mouth of the cartridge casing, the bullet having a length and comprising:
- a forward component made of a first metal comprising steel, the forward component having forward ogive portion with a forward tip, a cylindrical mid portion adjoining the forward ogive portion, and a rearward portion adjoining the cylindrical mid portion opposite the forward ogive portion, the rearward portion with a rear end corner, the cylindrical mid portion diametrically larger than the forward ogive portion, the rearward portion having a maximum diameter portion positioned adjacent the rear end corner, the rearward portion having a curved taper extending from the maximum diameter portion to the cylindrical mid portion, the maximum diameter portion extending less than 15% of the length of the bullet and having a diameter greater than the diameter of the cylindrical mid portion;
- a lead core rearwardly of the forward component;
- and
- a jacket formed of a second metal comprising copper and defining a cup, the steel component and lead core seated in the cup, the jacket having a rearwardly facing concavity.
Dependencies are inferred from the claim text.