Castable frangible projectile
AssigneeRocky Mountain Scientific Laboratory, LLC
InventorsTravis Swanson, Jon Kosak, Robert R. Nellums, Kristina Wikstrom
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Abstract
A novel castable frangible projectile and techniques for manufacturing such are provided. A cartridge system includes a case defining a volume, a propellant disposed in the volume of the case, and a projectile coupled to the case. The projectile includes a body disposed at least partially within the case and configured to enclose the propellant within the volume of the case. The body is formed of a castable eutectic mixture, the castable eutectic mixture configured to be melted and cast, wherein the body is configured to break into a plurality of fragments upon impact with a target.
Claims4
A method comprising:
- blending a castable eutectic mixture, the castable eutectic mixture comprising at least bismuth, tin, and lead, wherein the castable eutectic mixture is at least 50% bismuth by mass, at most 50% tin by mass, and at most 25% lead by mass;
- heating the castable eutectic mixture to a first melting point, wherein each of the bismuth, tin, and lead are melted together, wherein the melting point is below a respective second melting point of any of the bismuth, tin, and lead individually;
- casting a projectile from the castable eutectic mixture in melted form, wherein the castable eutectic mixture is poured into a projectile mold;
- and
- cooling the projectile, wherein the projectile is configured to break into a plurality of fragments upon impact with a target.
Dependencies are inferred from the claim text.