Rifle cartridge with improved bullet upset and separation
AssigneeFederal Cartridge Company
InventorBryan P. Peterson
Life of this patent
Estimating the term…
Abstract
A rifle cartridge with a bullet has desirable penetration capabilities and controlled separation of components upon terminal impact. In embodiments of the invention, the bullet comprises a forward component, a lead core, and a copper jacket. The lead jacket having a leading edge portion that extends to the cylindrical mid portion. The forward component may have a forward pointed ogive portion, a cylindrical mid portion, a mid ogive portion, and a pair of cylindrical portions separated by an annular groove. The jacket having a cannelure at the annular groove and the casing upper lip crimped into the cannelure.
Claims20
A rifle cartridge comprising a cartridge casing with a mouth and an interior, propellant in the interior of the cartridge casing, and a bullet secured in the mouth of the cartridge casing, the bullet comprising:
- a forward component, the forward component comprising a forward ogival portion with a forward ogival surface, the forward ogival portion terminating at a forward tip, a forward cylindrical portion rearward of the forward ogival portion, and a mid ogival portion rearward of the forward ogival cylindrical portion, the mid ogival portion comprising a mid ogival surface, and a rearward cylindrical portion rearward of the mid ogival portion;
- and
- a jacket defining a cup, configured to receive the forward componentseated in the cup, the jacket comprising a leading edge defining an annular scoop, wherein the annular scoop is defined by the leading edge portion and tapered rearward toward the forward cylindrical mid portion defining to define a forward facing annular recess.
A rifle bullet comprising:
- a forward unitary component, the forward unitary component having a forward tapering portion with a forward tip and defining a forward ogival surface, a forward cylindrical surface rearward of the forward ogival surface, a mid cylindrical surface separated from the forward cylindrical surface, a rearward cylindrical surface separated from the mid cylindrical surface;
- at least one core engaging the forward unitary component;
- and
- a jacket that encompasses the at least one core and tapers conformingly around the forward tapering portion of the forward unitary component, wherein the forward unitary component is partially contained in the jacket, the jacket having a leading edge spaced rearwardly from the forward tip of the bullet forward unitary component and having a taper opposite that of the forward tapering portion of the forward unitary component, the leading edge having a radial width exceeding that of the forward tapering portion, the leading edge exposed axially when viewed from the front of the rifle bullet.
A rifle bullet comprising a forward component partially contained in a jacket, the forward component, when viewed in cross section comprising a forward longitudinally extending first convex region, a longitudinal first concave region adjoining and rearward of the first convex region, a second convex region rearward of and adjoining the first concave region, a second concave region rearward of and adjoining the second convex region, and a third convex region rearward of and adjoining the second concave region, wherein the first convex region and the second convex region meet at a cylindrical portion;
- the jacket comprising a leading edge positioned adjacent the first convex region, the leading edge defining an annular scoop recess, wherein the annular scoop recess is exposed axially when viewed from the front of the rifle bullet.
Dependencies are inferred from the claim text.