Abstract: A method is disclosed for coating a projectile for use in an ammunition cartridge. A polymer jacket is applied to an undersized projectile core of a first standard caliber to bring the outer dimensions of the jacketed projectile into compliance with those of a second, larger caliber projectile. The polymer jacket coating may produce a non-uniform outer diameter of the polymer jacketed projectile and may include a plurality of circular cavities defined therein. The polymer-jacketed projectile may be a bullet for pistol or rifle ammunition, or a pellet, or shot for use in a shotgun shell.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile the projectile including a core, a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, and extending past a forward end of the core to form an open space inside the jacket between the forward end of the core and the forward end of the jacket, and a plurality of ventilation ports formed proximate the forward end of the jacket, each of the ventilation ports having a first opening on an inner surface of the jacket defining the open space, and a second opening on an outer surface of the jacket.

Abstract: A method of forming a projectile for use in a firearm ammunition cartridge, the method including mixing a first material and a second material having different densities to produce a core mixture, disposing the core mixture in a die, heating the core mixture to the melting point, removing the core mixture from the die, quenching the core mixture, and plating the core mixture with a jacket material.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile the projectile including a core, a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, and extending past a forward end of the core to form an open space inside the jacket between the forward end of the core and the forward end of the jacket, and a plurality of ventilation ports formed proximate the forward end of the jacket, each of the ventilation ports having a first opening on an inner surface of the jacket defining the open space, and a second opening on an outer surface of the jacket.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile the projectile including a core, a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, and extending past a forward end of the core to form an open space inside the jacket between the forward end of the core and the forward end of the jacket, and a plurality of ventilation ports formed proximate the forward end of the jacket, each of the ventilation ports having a first opening on an inner surface of the jacket defining the open space, and a second opening on an outer surface of the jacket.

Abstract: A method of forming a projectile for use in a firearm ammunition cartridge, the method including mixing a first material and a second material having different densities to produce a core mixture, disposing the core mixture in a die, heating the core mixture to the melting point, removing the core mixture from the die, quenching the core mixture, and plating the core mixture with a jacket material.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile the projectile including a core, a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, and extending past a forward end of the core to form an open space inside the jacket between the forward end of the core and the forward end of the jacket, and a plurality of ventilation ports formed proximate the forward end of the jacket, each of the ventilation ports having a first opening on an inner surface of the jacket defining the open space, and a second opening on an outer surface of the jacket.

Abstract: A method is disclosed for coating a projectile for use in an ammunition cartridge. A polymer jacket is applied to an undersized projectile core of a first standard caliber to bring the outer dimensions of the jacketed projectile into compliance with those of a second, larger caliber projectile. The polymer jacket coating may produce a non-uniform outer diameter of the polymer jacketed projectile and may include a plurality of circular cavities defined therein. The polymer-jacketed projectile may be a bullet for pistol or rifle ammunition, or a pellet, or shot for use in a shotgun shell.

Abstract: A projectile for use in a firearm ammunition cartridge, and a method of forming the projectile, the projectile including a core, and a jacket in which the core is disposed, the jacket having a closed rearward end and an open forward end, the forward end tapering inwardly toward a longitudinal centerline of the jacket to define an ogive portion of the projectile, wherein the forward end of the jacket terminates in a plane that is perpendicular to the longitudinal centerline of the jacket, and wherein an outer perimeter of the forward end of the jacket has a machined sharp edge.

Abstract: A firearm ammunition cartridge including a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port, the primer port opening to an interior of the case, a projectile received and retained within the leading end of the case, and configured with a recess extending inwardly from a trailing end of the projectile to receive a quantity of gunpowder, and a quantity of compressed gunpowder provided in the recess of the projectile such that the compressed gunpowder remains in the recess at any orientation of the projectile.

Abstract: A firearm ammunition cartridge including a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port, the primer port opening to an interior of the case, a projectile received and retained within the leading end of the case, and configured with a recess extending inwardly from a trailing end of the projectile to receive a quantity of gunpowder, and a quantity of compressed gunpowder provided in the recess of the projectile such that the compressed gunpowder remains in the recess at any orientation of the projectile.

Abstract: A firearm ammunition cartridge comprises a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port. An insert is received within the case and extending along the body portion. The insert has an exterior surface conforming to an interior surface of the body portion and a central cavity extending along an axial dimension of the insert. The central cavity opens to the primer port at the trailing end of the case and to a leading end of the insert. A quantity of gunpowder is disposed within the central cavity, and a projectile is received and retained within the leading end of the case. The gunpowder is confined to a chamber comprising at least a portion of the central cavity between said case trailing end and the projectile.

Abstract: A firearm ammunition cartridge comprises a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port. An insert is received within the case and extending along the body portion. The insert has an exterior surface conforming to an interior surface of the body portion and a central cavity extending along an axial dimension of the insert. The central cavity opens to the primer port at the trailing end of the case and to a leading end of the insert. A quantity of gunpowder is disposed within the central cavity, and a projectile is received and retained within the leading end of the case. The gunpowder is confined to a chamber comprising at least a portion of the central cavity between said case trailing end and the projectile.

Abstract: A firearm ammunition cartridge comprises a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port. An insert is received within the case and extending along the body portion. The insert has an exterior surface conforming to an interior surface of the body portion and a central cavity extending along an axial dimension of the insert. The central cavity opens to the primer port at the trailing end of the case and to a leading end of the insert. A quantity of gunpowder is disposed within the central cavity, and a projectile is received and retained within the leading end of the case. The gunpowder is confined to a chamber comprising at least a portion of the central cavity between said case trailing end and the projectile.

Abstract: A firearm ammunition cartridge comprises a case having a substantially tubular body portion, an open leading end, and a trailing end defining a primer port. An insert is received within the case and extending along the body portion. The insert has an exterior surface conforming to an interior surface of the body portion and a central cavity extending along an axial dimension of the insert. The central cavity opens to the primer port at the trailing end of the case and to a leading end of the insert. A quantity of gunpowder is disposed within the central cavity, and a projectile is received and retained within the leading end of the case. The gunpowder is confined to a chamber comprising at least a portion of the central cavity between said case trailing end and the projectile.

Abstract: A solid projectile useful in a round of gun ammunition wherein, upon striking a target, the projectile selectively disintegrates, leaving intact at least one portion or appurtenance of the projectile which is recoverable for purpose of identification of rifling markings thereon and/or other analysis.

Abstract: A frangible projectile useful in a round of gun ammunition wherein, upon striking a target, the projectile selectively disintegrates, leaving intact at least one portion or appurtenance of the projectile which is recoverable for purpose of identification of rifling markings thereon and/or other analysis.

Abstract: A method for geometrically enhancing of the flight of a projectile fired from a weapon to an intended target, including development of a flat annular face on the outermost end of the ogive portion of the projectile, such flat annular face being oriented in a plane that is substantially perpendicular to, and concentric with, the longitudinal centerline of the projectile, and further including extraction of extraneous material from the meplat cavity of the projectile while establishing at least a void volume within the meplat cavity which is substantially concentric with the longitudinal centerline of the projectile and of substantially uniform size and geometry from projectile to projectile. Geometric alteration of the wall thickness of the flat annular face also may be provided. An enhanced projectile and a round of ammunition are disclosed.

Abstract: Method and apparatus for the production of an ammunition projectile having enhanced properties relating to delivery of the projectile along its flight path from a weapon to, and upon striking, a target by reason of the formation of a meplat cavity in the leading end thereof which, from projectile to projectile, exhibits a uniform size, uniform geometry and which is free of extraneous material, and which is concentric with the centerline (spin axis) of the projectile. A round of ammunition is disclosed.

Abstract: Method and apparatus for the production of an ammunition projectile having enhanced properties relating to delivery of the projectile along its flight path from a weapon to, and upon striking, a target by reason of the formation of a meplat cavity in the leading end thereof which, from projectile to projectile, exhibits a uniform size, uniform geometry and which is free of extraneous material, and which is concentric with the centerline (spin axis) of the projectile. A round of ammunition is disclosed.