A boron steel high pressure cartridge case and method of manufacturing the same is provided. The method includes cold forming a cartridge case into a drawn blank or a tubular component; annealing the cartridge case using a belt furnace, flame furnace, induction furnace, or a batch furnace; performing a machine ejector slot and trim on the cartridge case; forming the shoulder and neck of the cartridge case; performing a heat treatment of the cartridge case; tempering the cartridge case; and coating the cartridge case with a zinc nickel plating. The cartridge case is fabricated of boron steel including 1.0% boron.

An axisymmetric disk-shaped cartridge is provided for firing from a gun having a fluted bore. The cartridge is initiated by a firing pin and includes a primer core, a propellant charge, a booster charge, a projectile mass, an ablative cap and a ductile metal coating. The projectile mass is disposed over the booster charge while the ablative cap is disposed over the projectile mass. The coating and mass elongate and radially narrow to maintain axial symmetry while being accelerated along the bore.

Casing for ammunition for hand guns made from aluminium or aluminium alloy, and which has a coating of 2-50 m of CaCO.sub.3(s) on the inner and outer surfaces of the casing, and a method for producing the coated casing.

Casing for ammunition for hand guns made from aluminium or aluminium alloy, and which has a coating of 2-50 m of CaCO.sub.3(s) on the inner and outer surfaces of the casing, and a method for producing the coated casing.

An apparatus, comprising: a substrate configured into a casing, a propellant configured between a projectile positioned/configured within the casing and an end of the casing, the propellant configured to expand upon a firing event and project the projectile from the casing; and a coating comprising a conformal coating layer having a particulate boron nitride dispersed therein, wherein the coating is configured to cover at least one of the inner sidewall and the outer sidewall, such that at least one side of the substrate is covered by the coating.

An apparatus, comprising: a substrate configured into a casing, a propellant configured between a projectile positioned/configured within the casing and an end of the casing, the propellant configured to expand upon a firing event and project the projectile from the casing; and a coating comprising a conformal coating layer having a particulate boron nitride dispersed therein, wherein the coating is configured to cover at least one of the inner sidewall and the outer sidewall, such that at least one side of the substrate is covered by the coating.

Casing for ammunition for hand guns made from aluminium or aluminium alloy, and which has a coating of 2-50 m of CaCO.sub.3(s) on the inner and outer surfaces of the casing, and a method for producing the coated casing.

Casing for ammunition for hand guns made from aluminium or aluminium alloy, and which has a coating of 2-50 m of CaCO.sub.3(s) on the inner and outer surfaces of the casing, and a method for producing the coated casing.

Ammunition casings are described that include a base, a body coupled to the base, and one or more patterns on the body.

A boron steel high pressure cartridge case and method of manufacturing the same is provided. The method includes cold forming a cartridge case into a drawn blank or a tubular component; annealing the cartridge case using a belt furnace, flame furnace, induction furnace, or a batch furnace; performing a machine ejector slot and trim on the cartridge case; forming the shoulder and neck of the cartridge case; performing a heat treatment of the cartridge case; tempering the cartridge case; and coating the cartridge case with a zinc nickel plating. The cartridge case is fabricated of boron steel including 1.0% boron.