Abstract: Sabot projectiles, especially arrow or fin-stabilized projectiles, should possess as small as possible spin so that they do not begin to oscillate or wobble (nutation) in the air. On the other hand, for the detachment of the sabot from the projectile body at the muzzle of the weapon barrel, it is advantageous if the sabot possesses a spin. According to the invention this objective is attained in that the projectile body or projectile is threaded into the sabot and can rotate relative to such sabot. The threads for threadably connecting the projectile body or projectile with the sabot have a thread course or direction which corresponds to the rifling twist of the weapon barrel. Furthermore, the magnitude of the thread pitch angle .alpha. essentially corresponds to the sliding friction angle .mu. between the projectile body or projectile and the sabot.

Abstract: An additive sealing or packing sleeve for large-calibered cannon ammunition, adapted for the protective treatment of the weapon barrel, which sleeve is constituted of a coated textile fabric which is assembled within a shell casing, in the form of a lining. The fabric is coated to provide a support or carrier for a mixture constituted of wax and titanium dioxide.

Abstract: A sub-caliber armor-piercing projectile exhibits for improving its penetration effect against a strongly inclined target surface a break-up in the region of a fracture zone of an expendable nose portion. The latter is provided at its point region with an arrangement which favors a sliding-off, which arrangement includes at least two frusto-conical surfaces which encompass the longitudinal projectile axis A and which surfaces are differently inclined with respect to the longitudinal axis of the projectile or include a sphere disposed in a spherical recess. The arrangement can be cladded with a ballistic hood and can be provided in the region of the frusto-conical or the spherical surfaces with a lubricating medium. The fracture zone is constructed in such a way that when a deviating sliding-off of the arrangement occurs, as large as possible a twisting impulse is transferred under the main projectile portion in order to improve its penetration capability by means of a more favorable penetrating angle.

Abstract: A projectile suitable for firing from a gun barrel contains an additive which is dispensed along the gun barrel by the pressure of a gas propellant so as to reduce barrel wear. A charge of additive (11) is stored within a cylindrical recess in the rear face (12) of the projectile. In use, the pressure of the gas propellant acts on a nylon piston (6) slidably located within the tube (2), which piston in turn pressurizes the charge (11) forcing it forward through the four extrusion ports (9) to the exterior of the projectile. The charge additive (11) is preferably a mixture of a thermal insulator and a lubricant, best characterized by silicone oil or a paste mixture of titanium dioxide and silicone grease. The invention is particularly applicable to small arms bullets for firing from a rifled gun barrel, and may be incorporated in existing hollowed bullets, for example tracer bullets.

Abstract: An external burning tracer-type projectile which is visible from many angular positions and not just the base includes a hardened metallic core that is completely encased in a combustible, self-oxidizing polymer jacket that is loaded with powdered fuels and oxidizers and which is ignited by the heat of the propelling charge of gun powder.

Abstract: A bullet lubricant is disclosed which includes a miscible amount of low molecular weight polyethylene polymer or ethylene-vinyl acetate copolymers in a wax base. The lubricant has a melting point in excess of 180.degree. F. The lubricant is applied by first heating a bullet and the mix to a pre-determined temperature then coating the bullet and cooling the bullet to allow the lubricant to solidify.

Abstract: Metal jacketed or lead alloy bullets are placed in a tumbler and mixed with a predetermined quantity of steel shot and molybdenum disulphide powder and corn cob grits or other fibrous material. The mixture is tumbled for a predetermined time until the molybdenum disulphide forms a coating adhering to the outside surface under the impact of the steel shot. The fibrous material acts to polish the surface of the bullets. This coating acts as a highly superior heat resisting and friction resisting lubricant which preserves the interior of the rifle barrel and improves the accuracy of the shooting.

Abstract: A bullet for muzzle loading guns and other firearms. The bullet has a pair of gas seals, a pair of knurled portions and at least one grease groove. A solid lubricant is positioned in the depressions of the knurled portions and also in the grease groove or grooves.

Abstract: A method and device for placing lubricant in a plurality of annular grooves of a projectile is disclosed comprising placing the projectile into a projectile lubricating device, securing the projectile lubricating device to a reservoir containing lubricant, and activating the flow of lubricant to the projectile through the projectile lubricating device.

Abstract: A cartridge case lubricator having a table supportable frame, an oil absorbent member supported in a recess in the frame, whereby the cartridge case can be passed downwardly through an opening in the absorbent member for lubricating the cartridge case, the underside of the absorbent member being supported by a support having a passage therethrough and a frame having an open space beneath a hole under the support so that the operator can easily remove the lubricated casing.

Abstract: An improved ammunition propellant composition and method for reducing gun member wear, erosion, flash and cook-off through use of an additive comprising a mixture of a super water absorbent starch modified polyacrylonitrile which has been subjected to alkaline saponification and water. The wear reducing additive is preferably formed into sheets which can be used with propellants selected from the group consisting of bagged propelling charges and cartridge cased propellants.

Abstract: An improved penetrator rod for a kinetic energy projectile is disclosed. edded as a central core within said penetrator rod is a lubricating rod, comprising metal alloys such as tin zinc, aluminum, or lead, which will continue to follow as it erodes upon penetration despite the heat and pressures of impact to an armor target. A new, lubricating, front end surface constantly re-appears as the front end of the penetrator erodes upon impact.