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 bullet having a front unit and a rear unit, the front unit adapted to house the rear unit is provided. The front unit has a fragmented section, a cavity wall section, and a separation ring. The separation ring being angled forward or rearward with respect to the center of the bullet or with respect to the outermost edge of the bullet and being disposed on the front unit between the fragmented section and the cavity wall section.

Abstract: An adaptive projectile for small caliber firearms includes preformed submunition elements deployed in a radiating pattern by a spreader upon impact with a soft target, such as the body of an assailant. But when initial impact is with an intermediate hard obstacle, a pressure-sensitive link disables the spreader so that the submunition elements will not deploy but instead become locked into a unitary, monolithic body capable of penetrating the hard obstacle. The nose of the projectile is a hollow ballistic penetrator that restrains the submunition elements upon impact with a hard object. The submunition elements rest on a base. For protection inside the gun barrel and during flight, the adaptive projectile is partially wrapped by a thin jacket that fractures and/or peals away upon impact with a soft target.

Abstract: A cartridge comprising a bullet, the bullet providing a radially expanding array of bullet fragments upon entering a target and also providing an increase in effective surface area of the bullet within the target by structural features that facilitate tumbling or mushrooming in the target. In an embodiment a pair of axial core members are aligned in a bullet jacket with the forward core member being segmented with separation junctures formed by engaged faces of adjacent segments. Impact causing fracturing of the segments from a base portion.

Abstract: Embodiments of a predictably fragmenting projectile having internally-arranged geometric features are disclosed herein. According to various embodiments, a predictably fragmenting projectile having internally-arranged geometric features can include a substantially solid core of a material; a substantially continuous and smooth outer ogive; a plurality of petals attached to the core and formed from the material, each of the plurality of petals can include a smooth outer surface and can be formed by two break lines formed on the inside of the petals; and a cavity that is located proximate to the core and inner surfaces of the plurality of petals. The fragmenting projectile can be configured to deform by at least one of the plurality of petals pivoting outwardly relative to the cavity.

Abstract: A bullet with controlled fragmentation has a core in the form of a generally cylindrical body having a forward end and a rear end and intermediate side portions extending there between, the forward end of the core defining a cavity, a jacket encompassing the rear end and at least selected portions of the sides of the core, the jacket having a sidewall having a first drive band portion having a first wall thickness, and a second portion immediately forward of the drive band portion having a second thickness less than the first thickness, the exterior of the jacket defining a cannelure groove encircling the bullet, and the cannelure groove being positioned forward of the first drive band portion. The drive band may have forward edge defining a step. The bullet of the present invention may also be received in the case mouth of a rimless case and be partially protruding therefrom.

Abstract: A firearm projectile has a core extending along a central axis from a base portion to a tip portion, the base portion generally having a cylindrical shape and the tip portion comprising an ogive shape. A jacket encases the core along the base portion and the tip portion, the jacket having a shank portion defining a closed rear end and an ogive portion extending to an open front end. Protrusions extend into the core from an inside of the shank portion, the protrusions having a spaced-apart arrangement with each protrusion engaging the core to retain the core together with the jacket upon impact with a target.

Abstract: The invention relates to a method for producing a deformation bullet, consisting of a projectile core made from lead in a tombac jacket. So that the performance of the bullet, such as the accuracy, deformation and energy transfer in the target medium can be adjusted and a homogeneous core of the bullet is created, the structure of which has a predefined breaking point on the center axis of the bullet, the following method steps are suggested: a. manufacture of a cup-shaped tombac jacket, introduction of lead into the tombac jacket and soldering of the lead with the tombac jacket in order to produce a blank, b. introduction of a pre-existing defect into the lead of the blank by pressing a die displaceable on the center axis of the blank into the lead and then removing the die, c.

Abstract: A multi-stage fragmenting projectile has a number of grooves and slots that are strategically placed on and around the periphery of the projectile. After the projectile engages an object, a first set of fragments separates from a main body of the projectile. A second set of fragments separate a short time later after the projectile has traveled farther in the object.

Abstract: A large caliber, frangible, training projectile imitates, for training purposes, the corresponding tactical projectile. To enable fragmentation of the training projectile at impact, some embodiments of the frangible projectile are partially or entirely made of a material with a lower yield strength than the material used in the counterpart tactical projectile. Some embodiments of the frangible projectile may include portions that are sectioned, welded, or provided with stress risers. Some embodiments of the frangible projectile may include high density particles suspended in a weaker medium. The fragmentation methods may be applied to the overall mass of the projectile, or to a portion of the projectile.

Abstract: A bullet having a metal jacket, having a generally cylindrical aft section, a tapering forward section, and an open front. A soft, dense, metal core is disposed in the metal jacket. The core has a cavity generally aligned with the open front of the jacket, with a plurality of blades extending forwardly into the cavity, each terminating in a front face at or spaced rearwardly of the forward edge of the metal jacket.

Abstract: A segmenting slug has a body having a generally dome-shaped forward portion, a generally cylindrical rearward portion, and an opening in the rear of the body forming an interior chamber. There are a plurality of generally radially extending notches in the dome-shaped forward portion of the slug, and a longitudinally extending groove in the wall of the interior chamber substantially aligned with each notch.

Abstract: A projectile for fire arms formed in such a way that it includes a front portion of essentially convex axial cross-section that via a transition transforms into a rear portion of essentially cylindrical radial cross-section, which rear portion acts as a power belt for the projectile.

Abstract: An improved projectile having a penetrator and a body is disclosed. The penetrator is secured to the body. Upon impacting a target, the penetrator travels into the body and deforms the body. The body optionally has one or more portions, such as slots in the body, to promote deformation of the body upon the penetrator impacting the target. The body optionally has a bore extending at least partially therethrough that permits attachment of the penetrator at a second end of the body opposite the first end.

Abstract: Bullets, including lead-free bullets with frangible cores, are described herein. In some embodiments, a bullet includes a jacket having an inner surface defining a cavity having an open end and a closed end. The bullet also includes a lead-free core positioned within the cavity and extending from the closed end to a first intermediate portion of the cavity. The core includes a plurality of particles that are compacted within the cavity to form the core. The bullet also includes a seal positioned within the cavity and extending from the first intermediate portion to a second intermediate portion of the cavity. The seal abuts the inner surface of the jacket, thereby substantially sealing off the core within the cavity. The bullet may also include a polymeric tip having a forward portion projecting forward from the open end and a rearward portion extending rearward into the cavity.

Abstract: A bullet comprising a lead-free body having a tail section and a nose section. The nose section has an ogived outer surface and a forward terminus. The body further has an opening at the terminus, and a cavity in the nose section. The cavity extends rearward from the opening to an intermediate section of the body. The cavity includes a forward sidewall having at least a generally frusto-conical shape that converges rearward from the opening to a transition area. The cavity further includes a rear sidewall extending rearward from the transition area at a different angle than the forward sidewall.

Abstract: A bullet comprising a lead-free body having a tail section and a nose section. The nose section has an ogived outer surface and a forward terminus. The body further has an opening at the terminus, and a cavity in the nose section. The cavity extends rearward from the opening to an intermediate section of the body. The cavity includes a forward sidewall having at least a generally frusto-conical shape that converges rearward from the opening to a transition area. The cavity further includes a rear sidewall extending rearward from the transition area at a different angle than the forward sidewall.

Abstract: An improved projectile having a penetrator and a body is disclosed. The penetrator is secured to the body. Upon impacting a target, the pentrator travels into the body and deforms the body. The body optionally has one or more portions, such as slots in the body, to promote deformation of the body upon the penetrator impacting the target. The body optionally has a bore extending at least partially therethrough that permits attachment of the penetrator at a second end of the body opposite the first end.

Abstract: Disclosed is a bullet shell for hunting guns, preferably those having barrels with “rifled choke” rifling. The shell comprises a bullet made of a solid material and a thin-wall plastic envelope. On its surface, the bullet has a trapezoidal groove delimiting nose and heel portions of the bullet. The envelope enclosing the bullet is made of identical longitudinal halves having a cylindrical outer surface and an inner surface matching with the surface of the bullet. A peripheral flat collar of a width of b and a height of b1=0.5b is provided at the bullet nose portion end surface. The collar passes into a taper boring with an apex angle ?=120±5°, and the envelope protrudes by b2=b1 beyond the plane of the bullet collar. The bullet shell offers improved longitudinal stability when shooting through minor obstacles (bushes, grass) and improved grouping of up to 60 mm at 100 m.

Abstract: Bullets, including lead-free bullets with frangible cores, are described herein. In some embodiments, a bullet includes a jacket having an inner surface defining a cavity having an open end and a closed end. The bullet also includes a lead-free core positioned within the cavity and extending from the closed end to a first intermediate portion of the cavity. The core includes a plurality of particles that are compacted within the cavity to form the core. The bullet also includes a seal positioned within the cavity and extending from the first intermediate portion to a second intermediate portion of the cavity. The seal abuts the inner surface of the jacket, thereby substantially sealing off the core within the cavity. The bullet may also include a polymeric tip having a forward portion projecting forward from the open end and a rearward portion extending rearward into the cavity.

Abstract: A shock-triggered warhead fragment transmitter is described. The transmitter is designed to radiate a pulse upon either detonation of the warhead or impact of the fragment with the target. The pulse energy is obtained by shock de-poling of a ferroelectric material and is radiated using a dipole antenna. Detection of the radiated pulses may be used to confirm detonation of the warhead and determine the time and location of the detonation and facilitate battle damage assessment.

Abstract: The present invention relates to a bullet made of a single solid piece of deformable metal, containing no lead or toxic material, easily deformable but without fragmentation in a soft environment with a high rate of energy transfer, and a high level of solidity in hard targets, retaining most or its total initial weight while penetrating those targets. Said objects are achieved by constructing a solid monobloc bullet with a cavity on the longitudinal axis which is opened towards the fore end of the bullet. The method of construction encompasses a sequence of simple operations: cutting of a cylinder blank of soft material, forming a cavity centered on the longitudinal axis, and forming an ogival or conical form, with external pre-cuts to foster an homogenous deformation.

Abstract: Especially in hunting, the choice of bullets has to be such that it is in keeping with the wild animals to be hunted. According to the desired effect on the target, deformation bullets or partial fragmentation bullets are used. Since both types of bullets are different, the position of the point of impact from the same weapon is different. According to the type of bullet used, the weapon must be oriented differently in relation to the target. This can be obstructive and if insufficient attention is paid, can result in misses.

Abstract: A bullet includes a frontward facing aperture. Contained within the aperture is a relatively hard bullet frontal element that provides advantageous bullet impact performance. In one embodiment, the frontal element is a steel sphere that provides advantageous penetration and weight retention when the bullet impacts laminated glass., such as an automobile windshield.

Abstract: A hollow point bullet and methods for fabricating the same are disclosed. An example hollow point bullet includes a recess opened at a tip of the bullet that includes a first portion and a second portion. The first portion opens to the tip of the bullet and has a square cross-section, and the second portion has a circular cross-section.

Abstract: A plated hallow point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is mechanically deformed without breaching the coating.

Abstract: A plated hollow-point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment with an inwardly extending cavity. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is mechanically deformed by grooves formed along a surface of the cavity without breaching the coating.

Abstract: A bullet for law enforcement and personal defense use capable of meeting current FBI and IWBA standards and comprised of a jacket of malleable metal having a cylindrical side wall, tapered nose portion, an open forward end, and a plurality of deep longitudinally extending scores formed in the nose portion and defining petals therebetween which extend rearwardly from its mouth, and a malleable core mounted within the jacket and having a plurality of separate segments extending forwardly from its cylindrical base into the nose portion of the jacket and terminating adjacent said open jacket end in a shallow hollowed point, the bullet being capable of piercing substantial barrier materials before entering its target and thereafter expanding radially to about 1.5-2.0 times its diameter, while traveling 9-16 inches within its target.

Abstract: A bullet that has a controlled fragmentation on impact with a target. The bullet includes a generally cylindrical body having a nose, a mid-portion and a heel. The body includes an aperture that starts at the nose, extends past the mid-portion of the bullet and ends near the heel of the bullet. The aperture also includes ay least one scored area along the sides of the aperture and extending along at least some or all of the aperture. The heel portion includes a scored area that terminates at a location that aligns with the scored area along the sides of the aperture in the bullet.

Abstract: A frangible hollow point bullet is disclosed. The bullet (or slug) is formed from a frangible material such as sintered copper to provide a bullet-shaped body. A plurality of coaxial, substantially cylindrical cavities having progressively decreasing bore diameters are formed in the nose of the bullet-shaped body, extending rearwardly therefrom, to provide a bullet that both expands and fragments in a semicontrolled fashion upon impact with a target. In a preferred embodiment, at least one of the coaxial cavities is multiply scored to provide a substantially symmetric fragmentation pattern and controlled and uniform fragment size. Controlling the aggregate depth of the coaxial cavities enables the retention of a recoverable base or shank that is suitable for ballistic investigation following bullet impact.

Abstract: A plated hallow point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is mechanically deformed without breaching the coating.

Abstract: A bullet for law enforcement and personal defense use capable of meeting current FBI and IWBA standards and comprised of a jacket of malleable metal having a cylindrical side wall, tapered nose portion, an open forward end, and a plurality of deep longitudinally extending scores formed in the nose portion and defining petals therebetween which extend rearwardly from its mouth, and a malleable core mounted within the jacket and having a plurality of separable segments extending forwardly from its cylindrical base into the nose portion of the jacket and terminating adjacent said open jacket end in a shallow hollowed point, the bullet being capable of piercing substantial barrier materials before entering its target and thereafter expanding radially to about 1.5-2.0 times its diameter, while traveling 9-16 inches within its target.

Abstract: An aerodynamic projectile, preferably a non-lethal projectile, including a projectile shell having an aerodynamic structure and a controlled center of gravity which exhibits improved aerodynamics and resulting accuracy and which fractures in a predetermined pattern to disperse a fill contained therein. A method of making an aerodynamic projectile.

Abstract: The instant invention is a lightweight enhanced velocity bullet consisting of a hollow cylindrically shaped metal jacket component made of brass, the body of which is filled nearly to capacity with a malleable tin-copper-silver alloy material and with the body having a flattened posterior end and with there being a second end anterior to the body which said second end is hollow within, devoid of any alloy material and tapering symmetrically to a blunt point.

Abstract: An expansion projectile (1) with a projectile body (2) forms a central arbor (3) at its end face and a collar (4) coaxially surrounding the arbor (3), where the collar (4) has an outer shape (6) tapering towards the free collar edge (5), and between collar (4) and arbor (3) there is provided a cavity (7) open towards the front. In order to achieve a monobloc projectile free from lead with a high efficiency and a wide range of applications in an economic way, the arbor (3) consists of shaft (31) and tip (32) the collar (4) touches the arbor (3) at least in the transition area (33) between shaft (31) and tip (32), and the arbor (3) protrudes at least up to the axial height of the collar edge (5).

Abstract: A sabot bullet having a jacket bullet body and a nonrotable sabot segments. The jacketed bullet has forward end portion, torso, and rear end portion. The forward end portion is constructed of multi-metals, having a tapered nose, hollow point with grooves to aid in the expansion. The torso is of solid single metal with outward tabs, which relates the slug when the sabot's external surface comes in contact with the rifling in the gun barrel. The rear portion a single metal with a rear cavity to reduce the over all weight and increase the ratio to the forward portion of bullet. A bullet embodiment with external rifling and an armor piecing sabot round is also disclosed.

Abstract: A projectile having improved accuracy when fired over long ranges is formed from a monolithic block of a copper alloy. Proceeding from a nose to a heel of the projectile, is a fore portion with arcuate side walls, a body portion of substantially constant cross-sectional area that minimally contacts a rifled gun barrel, a drive band having a diameter effective to seal propellant gases and an aft portion that continuously decreases in diameter terminating at the heel. A cylindrical bore extends from an opened end at the nose to a closed end proximate to a transition plane between the fore portion and the body portion.

Abstract: There is provided a lead-free projectile suitable for use as a bullet to be fired from a pistol or rifle. The projectile has a metallic jacket enveloping a metallic core. The core is formed from a high purity tin and has deformation properties similar to that of lead based projectiles without the environmental hazards associated with lead.

Abstract: A method of manufacturing a hollow point bullet is disclosed. A cavity is formed in an end portion of a slug of generally solid material. A plurality of grooves are formed on an outer surface of the end portion of the slug. A slit is cut through a portion of each of the grooves substantially adjacent a peripheral edge of the end portion. The end portion of the slug is contoured so that the bullet has a desired shape and geometry.

Abstract: A solid copper hollow point bullet is disclosed wherein the effective expansion is about two times the original diameter. Over expansion and curling under of the petals formed upon impact with a target media is minimized and controlled by external stress risers and hollow point cavity geometry.

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: An improved tubular projectile is described wherein an effective balance has been obtained between the design parameters of reduced mass/reduced aerodynamic drag, flight characteristics, and high energy transfer upon impact. An elongate tubular projectile is provided with an axial passageway, with a central section of generally uniform diameter and flared ends. Slots are cut into the leading end to assist with expansion upon impact. The tubular projectile can be used in sabot type, ammunition, full bore shotgun ammunition, and in conventional case type rifle ammunition.

Abstract: An air gun pellet is formed to include providing a pellet member having a conical skirt, to include a pellet head along a pellet axis, with a skirt cavity directed into the skirt and a head cavity directed into the head coaxially aligned along the axis, wherein the skirt is arranged for filling with a solder insert, whereupon subsequently, a bore member is directed coaxially through the pellet member coextensively thereof.

Abstract: A controlled expanding small caliber bullet is disclosed which comprises a partition-type bullet, a rear cavity filled with a dense core and a high strength insert between the core and the body in the forward portion of the rear cavity.

Abstract: A jacketed hollow point bullet having a lead core and the method of making same with the core having a downwardly extending cavity having side portions terminating adjacent the peripheral edge of the jacket, with slits being formed in the peripheral edge of the jacket and down through the adjacent side portions of the core.

Abstract: An ammunition system having a sabot with spaced segments forming a cavity for receiving a slug, the segments have projections that interlock on a ledge on the slug. The sabot segments are undercut to facilitate the segments bending outwardly to release the slug when firing. The slug has a segmented hollow point nose and a boat tail base portion. The sabot and slug are used in a shell with a gas seal wad and an alignment disc.

Abstract: A controlled expanding small caliber bullet is disclosed which comprises a partition-type bullet with an empty hollow point, a rear cavity filled with a dense core and a high strength insert between the core and the body in the forward portion of the rear cavity.

Abstract: A small arms projectile containing a series of vents or apertures in a geometric arrangement such that the projectile's leading edge is capable of penetrating the target without structural failure and depositing the majority of its residual energy in the target. In addition, the design of the body allows the projectile to be spin stabilized when fired from any suitable weapon.

Abstract: A sabot bullet is disclosed having a front conical part and a rear conical part converging towards each other and joined by an integral interconnecting part having a smooth outer surface joining with the adjacent ends of the conical front and rear parts. The front conical part has a forwardly open empty recess having flat side walls and a polygonal radial cross section in the front end thereof.

Abstract: A bullet is manufactured by providing a slug of metal having an end face and applying an axial force against the end face of sufficient magnitude to form an axially outwardly opening first cavity. Thereafter a second force is applied against the first cavity to reform the first cavity into a second cavity having a peripheral edge of a generally scalloped configuration and an interior surface defining tears of alternating triangular flat faces set-off by edges converging toward a blind end of the cavity. The end portion is then contoured into a generally convex curvature which constricts the scalloped peripheral edge and transforms the triangular faces into radially inwardly directed ribs and alternating lines of weakness which, upon bullet impact, control radial expansion and axial tearing of petals formed during impact which creates maximum hydraulic shock in the absence of fragmentation which in turn ensures humane killing of game.