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US 11,306,989 B2Granted
Devices and methods for extraction of high pressure cartridge casings
AssigneeVista Outdoor Operations LLC
InventorBryan P. Peterson
Life of this patent
Estimating the term…
Abstract
Devices and methods for chambering and releasing a high pressure cartridge case from a firearm. In some embodiments, a static chamber insert of high elastic modulus is disclosed. In some embodiments, a dynamic or adaptable chamber insert that radially expands in an out-of-battery configuration and radially contracts in a battery configuration is disclosed.
Claims5
A gun barrel assembly, comprising:
- a gun barrel formed of a material comprising steel and configured for firing a cartridge within a range from .17-.50 caliber;
- a chamber at a proximal end of the gun barrel;
- and
- a chamber insert affixed in the chamber, the chamber insert dimensioned to extend along a body of a cartridge case and terminate proximate a neck of the cartridge case accommodated and fired by the gun barrel assembly,
- wherein the chamber insert defines an interior surface for interfacing the cartridge casing, and the chamber insert is formed of a material comprising one of a tungsten carbide, a tungsten heavy alloy, and a bulk metallic glass, and the material comprising an elastic modulus that is from about 60×106 psi to about 200×106 psi.
2 more elements
Dependencies are inferred from the claim text.