A method of making a polymer-coated, lead-free projectile. In an embodiment, the method comprises compressing a lead-free metal powder to form a green core, heating the green core to bond the lead-free metal powder to form a metal compact of desired strength and placing the metal compact into fluidized bed of polymer to bond polymer to the metal compact to form a polymer coated compact. A polymer-coated, lead-free projectile made according to the described method, and a loaded round comprising the polymer-coated, lead-free projectile are also disclosed.

A method of making a polymer-coated, lead-free projectile. In an embodiment, the method comprises compressing a lead-free metal powder to form a green core, heating the green core to bond the lead-free metal powder to form a metal compact of desired strength and placing the metal compact into fluidized bed of polymer to bond polymer to the metal compact to form a polymer coated compact. A polymer-coated, lead-free projectile made according to the described method, and a loaded round comprising the polymer-coated, lead-free projectile are also disclosed.

Disclosed herein are methods of making fragmentation casings for bombs and warheads. Particularly, cold spray methods are used. A layer or layers of metal, metal alloy, and optional other materials are deposited by cold spray application of cold spray materials to preform/mandrel, having patterned structures to define fragmentation points (e.g., stress concentrators) in a fragmentation casing formed on the preform/mandrel via cold spray. In addition to such cold spray processes for forming a fragmentation casing, this disclosure relates to the preform/mandrels used as well as the resultant fragmentation casing formed via cold spray.

Disclosed herein are methods of making fragmentation casings for bombs and warheads. Particularly, cold spray methods are used. A layer or layers of metal, metal alloy, and optional other materials are deposited by cold spray application of cold spray materials to preform/mandrel, having patterned structures to define fragmentation points (e.g., stress concentrators) in a fragmentation casing formed on the preform/mandrel via cold spray. In addition to such cold spray processes for forming a fragmentation casing, this disclosure relates to the preform/mandrels used as well as the resultant fragmentation casing formed via cold spray.

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.

A system for printing a bullet tip identification includes a bullet support apparatus for holding and rotating a bullet about its longitudinal axis and a print head configured to be positioned in close proximity to a tip of a bullet. The print head is configured to apply an identification around the circumference of the bullet tip while the bullet is rotating about its longitudinal axis. A method of applying identification marks on bullet tip includes positioning a bullet tip in close proximity to a print head and rotating the bullet about a longitudinal axis of the bullet. An identification mark is then applied around the circumference of the bullet tip by the print head as the bullet rotates.

A system for printing a bullet tip identification includes a bullet support apparatus for holding and rotating a bullet about its longitudinal axis and a print head configured to be positioned in close proximity to a tip of a bullet. The print head is configured to apply an identification around the circumference of the bullet tip while the bullet is rotating about its longitudinal axis. A method of applying identification marks on bullet tip includes positioning a bullet tip in close proximity to a print head and rotating the bullet about a longitudinal axis of the bullet. An identification mark is then applied around the circumference of the bullet tip by the print head as the bullet rotates.

A dispenser for dispensing an adhesive onto a remote surface, such as a case mouth and primer ammunition. The dispenser includes a reservoir containing an adhesive; a positive displacement pump; and a nozzle having a tapered tip. The positive displacement pump delivers a predetermined amount of the adhesive, preferably an anaerobic adhesive, from the reservoir to the nozzle at predetermined intervals. The nozzle discharges the predetermined amount of adhesive through the air and at least 1/16-inch onto the remote surface.

A dispenser for dispensing an adhesive onto a remote surface, such as a case mouth and primer ammunition. The dispenser includes a reservoir containing an adhesive; a positive displacement pump; and a nozzle having a tapered tip. The positive displacement pump delivers a predetermined amount of the adhesive, preferably an anaerobic adhesive, from the reservoir to the nozzle at predetermined intervals. The nozzle discharges the predetermined amount of adhesive through the air and at least 1/16-inch onto the remote surface.

The present invention relates to a bullet with an increased effective range. The bullet includes a front end portion (10) having a hemispherical shape, a recess portion (20) connected to a rear end of the front end portion (10) and having a curved surface that is recessed inward, an inclined portion (30) connected to a rear end of the recess portion (20) and inclined at a predetermined angle (A) with respect to a horizontal line, a stepped portion (40) connected to a rear end of the inclined portion (30) and inclined at a predetermined angle (A) with respect to the horizontal line, and fluid inducing grooves formed from the rear to a rear end surface of the bullet (1). Thus, when the bullet passes through underwater, super cavitation may be more effectively generated and maintained for even longer to significantly increase the effective range of the bullet.