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US 2019/0277610 A1Published application
Bullets and methods of making bullets
AssigneeOlin Corporation
InventorGerald Todd Eberhart
Life of this patent
Estimating the term…
Abstract
A method of making a bullet includes metal injection molding a bullet jacket or preform, and forming the jacket or preform into a bullet.
Claims17
A method of making a bullet comprising:
- metal injection molding a bullet jacket of a first material, the jacket comprising a back, and a sidewall projecting forwardly and outwardly from the back, the sidewall having a rearward portion and a forward portion, with the wall thickness of the rearward portion increasing toward the forward portion, and the wall thickness of the forward portion decreasing toward the forward end;
- inserting a core of a second material into the rearward portion of the sidewall;
- forming the jacket around the core to form a bullet with a generally cylindrical rearward portion and a forward portion that tapers toward the forward end, with an open forward end, the juncture between the rearward portion of the jacket and the forward portion of the jacket impinging on and retaining the core.
A method of making a solid bullet comprising:
- metal injection molding a bullet preform, the bullet preform having a generally cylindrical shape with solid rearward portion, and a hollow forward portion open to the front of the bullet preform;
- forming the forward portion of the bullet perform into a tapering configuration with an open front end.
A method of making a solid bullet comprising:
- metal injection molding a bullet preform, the bullet preform having a generally cylindrical shape with solid rearward portion, and a hollow forward portion open to the front of the bullet preform, the hollow being formed by a cavity in the forward portion extending at least 50% of the total length of the preform;
- forming the forward portion of the bullet perform into a tapering configuration with an open front end.
A method of making a bullet comprising:
- metal injection molding a partition bullet jacket of a first material, the jacket comprising a partition having a forwardly projecting sidewall forming a forward cup, and a rearwardly projecting sidewall forming a rearward cup;
- inserting a rear core in the rear cup and deforming at least a portion of the rear cup to engage the rear core in the rear cup;
- inserting a forward core in the forward cup and deforming at least a portion of the forward cup to form a tapering forward portion of the bullet and engage the forward core therein.
Dependencies are inferred from the claim text.