Abstract: A bullet is provided which is substantially 100% pure fluorocarbon resin. In the preferred embodiment a fluorocarbon resin in the form of polytetrafluoroethylene, preferably Teflon from E.I. Dupont De Nemours Co., Inc. of New Jersey, also known as Dupont, is provided with multiple annular grooves near the rear end and a hollow point front end. The bullet in the preferred embodiment is characterized by having a high muzzle velocity, a very short effective range, and pulverizes on impact so as to deliver considerable hydrostatic shocking effect by delivery of all of its energy within the first two to three inches of target depth.

Abstract: A full metal jacket hollow point bullet is disclosed which has a portion of the jacket extending within the hollow open front end of the bullet. The portion of the jacket in the hollow front end has a plurality of radial slits and reinforced pointed prongs therebetween. A rearwardly extending completely empty blind bore extends from the tips of the prongs axially rearwardly into the bullet core. The base of each of the prongs is reinforced at the mouth of the front end by a fillet on each side between the ogive portion of the jacket and the base of the prong in the hollow front end. These prongs project generally radially outward upon upset of the bullet in soft tissue after passing through barrier materials such as clothing and deer hide.The jacket has a coating of copper oxide on its inner and outer surfaces which bonds the soft lead core to the jacket and minimizes lead wash.

Abstract: There is described a cylindrical bullet or projectile having imbedded coaxially in lead or like bullet metal, a internal expansion control insert of copper or like bullet-jacketing metal. The insert has a cylindrical outer surface having a common cylindrical interface with the outer portion of the bullet. The inner surface of the insert has a star-shaped configuration constituted by lead-filled, axially-disposed, V-shaped channels the apices of which are adjacent the outer surface of the insert and the sides of which flare out symmetrically about radii to an intercept with the hollow core of the bullet which extends from a position at or near the base of the bullet as a cylindrical surface to a position at or near the nose of the bullet whereupon it extends on an inverted, frusto-conical surface to the nose-end of the bullet.

Abstract: An improved sabot bullet for use primarily in connection with shotgun shells which includes a slug having a forward portion which radially converges towards the middle portion thereof, and an outer conforming sabot casing which includes a pair of sabot segments which substantially surround and conform to the outer configuration of the slug. Each sabot segment is constructed to be slightly radially spaced from the slug near the constricted middle portion thereof, and to converge and engage the radially diverging portion of the slug near the forward end thereof, so as to cause the slug to be guided mainly at a point adjacent the front end thereof. Each sabot segment is also constructed to extend rearwardly beyond the rear end of the slug to facilitate rearward movement of the slug relative to the sabot, and consequent outward radial wedging of the sabot segments against the inner walls of the gun barrel, upon firing the fireman.

Abstract: The expanding bullet assembly incorporates a bullet head which incorporates an axial borehole extending from the rear of the bullet head towards the tip but not reaching the tip. The bullet head can incorporate longitudinal serrations or grooves and/or circumferential grooves which aid in separation upon impact. The borehole receives a shaft made of brass, copper or other metal harder than the leaden bullet. The shaft (or pin) extends from the back of the bullet and is connected to an inertial fragmenter, which is separated somewhat from the bullet head. The fragmenter can have tapered or sloped sides adjacent the back of the bullet for wedging into and forcing apart the fragments of the bullet. The bullet head can be round, pointed or hollow pointed. The shaft end near the bullet tip can alternatively be an integral expanded shaft tip having the shape of a sphere.

Abstract: A controlled expanding small caliber bullet is disclosed which comprises a unitary metal body of generally H shaped cross section having an ogival nose portion, a cylindrical heel portion behind the nose portion, and an integral transverse partition therebetween. The nose portion has an empty hollow point formed by a forwardly open central blind bore. The heel portion has a rearwardly opened cavity filled with a dense material such as lead. The cavity is closed behind the lead core by a solid disk crimped into mechanical engagement with the heel portion of the metal body.

Abstract: A full metal jacket hollow point bullet is disclosed which has the jacket extending fully within the hollow open front end of the bullet. A plurality of radial slits through the jacket within the hollow front end extend from the axis to the mouth of the hollow front end. These slits form prongs therebetween which project outward upon upset of the bullet in soft tissue.

Abstract: A method of manufacturing a hollow point bullet and the product resulting therefrom. A core is first formed from a deformable first metal and the entire core is electroplated with a second metal. A partially electroplated cavity is then formed within one end of the core with slits through the second metal along the cavity walls. The core is formed into its final shape in such a manner that the walls of the cavity are inclined at a desired angle relative to the axis core and the slits are extended to the circumferential edge of the cavity.

Abstract: A rifle or handgun bullet having a base and a leading end of ogival shape extending for a portion of its length is divided into a plurality of sections by parting lines extending radially from the central axis and terminating a short distance from the outer wall, whereby the sections are joined by relatively thin webs at their outer edges. The parting lines extend longitudinally from the leading end through at least the ogival portion to as much as 90% of the length of the bullet. Upon impact with a lubricious target the sections separate from one another and from the base, i.e., the portion into which the parting lines do not extend. The bullet is fabricated in a two-stage operation, first forcing a punch longitudinally into a cylindrical slug of malleable metal contained within a die, and then compressing the slug radially inwardly to force essentially all air from the spaces formed by the punch, thereby and forming the ogival leading end.

Abstract: The invention is a bullet which comprises a hollow central cavity, an outside plastic jacket, a lead core, an inside metal jacket, a slotted nose, a gas seal, a gas seal reinforcement disc, and a gas seal extension having slotted seal feathers.

Abstract: The invention relates to the art field of cartridges for conventional smoothbore shotguns used in hunting. A projectile is disclosed that consists in a hollow cylindrical leaden body the forward end of which is stopped by a dome reflexed back into the hollow body and exhibiting an external recess.

Abstract: A projectile for a centerfire cartridge that achieves maximum energy transfer with limited target penetration when fired from snub-nosed pistols. A hollow point lead bullet is provided with an aluminum jacket of sufficient hardness to avoid fouling the pistol barrel and which allows the cartridge containing the projectile to feed reliably in auto-loading pistols and yet does not restrict normal expansion of the bullet upon impact with the target. The jacket extends into the nose recess of the bullet and covers the peripheral portion of the bullet base, whereby the jacket is securely fastened to the bullet and separation subsequent to impact is prevented. The jacket is uniformly notched at the nosetip annulus to weaken the aluminum jacket and promote upset at surprisingly low impact velocities.

Abstract: There is disclosed a bullet or projectile, which may be fired by a wide variety of guns or other means, with improved accuracy and impact shock, and of a form embodying a generally conventional exterior configuration but having a hollow-point construction including ribs and flutes in the hollow portion which are formed to increase the hydraulic effects of entry into a fluidic target with more complete, uniform flattening and reaming action without reduction in accuracy.