The invention relates to a Pb-free deforming/partially fragmenting projectile with a projectile body. In order to improve the killing effect of the projectile, the projectile has a fragmenting core according to the invention. The projectile body is equipped with a bore which is arranged on the longitudinal axis, extends from the tip of the projectile body, and extends into the interior, and the projectile body tip, which faces away from the projectile base has a bevel which extends from the outer circumference of the projectile body to the bore and runs at an acute angle to the longitudinal axis. The fragmenting core has a cylindrical part and a head part. The cylindrical part is arranged in the bore, and the head part protrudes out of the bore and has a support surface which is adapted to the bevel in the projectile body and together with the support surface rests on the bevel of the projectile body. The head part has a rounded tip which forms the tip of the projectile.

Frangible firearm projectiles, firearm cartridges containing the same, and methods for forming the same. The firearm projectiles are formed from compacted metal powders that may include an anti-sparking agent. The compacted metal powders may be or include a compacted mixture of metal powders that may include powders of one or more of iron, zinc, bismuth, copper, tungsten, nickel, boron, and/or alloys thereof, and/or oxides thereof. The compacted mixture may be heat treated for a time sufficient to form a plurality of discrete alloy domains within the compacted mixture. The frangible firearm projectile may be formed by a mechanism that includes vapor-phase diffusion bonding and oxidation of the metal powders and that does not include forming a liquid phase of any of the metal powders or utilizing a polymeric binder. The anti-sparking agent may include a borate, such as boric acid.

A projectile having a projectile body for holding a penetrator, a projectile rear, and a projectile ogive. The projectile body has a narrowed point, on which the penetrator can be supported. The narrowed point results in reliable breaking open of the projectile body when the projectile hits a target.

A projectile having a projectile body for holding a penetrator, a projectile rear, and a projectile ogive. The projectile body has a narrowed point, on which the penetrator can be supported. The narrowed point results in reliable breaking open of the projectile body when the projectile hits a target.

The invention comprises a projectile, compliant with the U.S. Code of Federal Regulations and/or the United States Code, such as 18 U.S.C. § 921(a)(17)(B), which regulates bullet materials and mass fractions. For example, the invention is to a projectile comprising: (1) a metal core, such as a cobalt alloy core, including a base and a tip, where the base and the tip are separated by a core length along a z-axis running longitudinally through a center of the metal core; and (2) a jacket circumferentially attached to the metal core, the jacket surrounding at least fifty percent of the core length of the metal core, where the jacket includes: a polymer and a first jacket radial thickness along at least a section of an interquartile portion of the core length of greater than 0.03 inches.

The invention comprises a projectile, compliant with the U.S. Code of Federal Regulations and/or the United States Code, such as 18 U.S.C. § 921(a)(17)(B), which regulates bullet materials and mass fractions. For example, the invention is to a projectile comprising: (1) a metal core, such as a cobalt alloy core, including a base and a tip, where the base and the tip are separated by a core length along a z-axis running longitudinally through a center of the metal core; and (2) a jacket circumferentially attached to the metal core, the jacket surrounding at least fifty percent of the core length of the metal core, where the jacket includes: a polymer and a first jacket radial thickness along at least a section of an interquartile portion of the core length of greater than 0.03 inches.

A bumper for preventing a forward portion of an electrode from penetrating a target comprises a rearward portion and an expandable portion. The rearward portion is configured to couple the bumper to a forward portion of an electrode. The expandable portion may comprise a plurality of members. The expandable portion is configured to transition from a collapsed state to an expanded state after being launched toward a target. The expanded state comprises a greater contact area than the contact area of the collapsed state. The greater contact area of the expanded state is configured to distribute a force of impact on the target to prevent penetration into the target. The transition from the collapsed state to the expanded state may be configured to increase a duration of impact with the target, thereby reducing a force of impact on the target to prevent penetration into the target.

The present invention relates to a deformation and/or partial fragmentation projectile comprising a jacket and a two-part core arranged within the jacket and having a projectile front-sided core part and a projectile rear-sided core part, the core being attached to the jacket such that the projectile rear-sided core part is more strongly attached to the jacket than the projectile front-sided core part.

The present invention relates to a deformation and/or partial fragmentation projectile comprising a jacket and a two-part core arranged within the jacket and having a projectile front-sided core part and a projectile rear-sided core part, the core being attached to the jacket such that the projectile rear-sided core part is more strongly attached to the jacket than the projectile front-sided core part.

The present invention provides a treated projectile having a reduced friction compared to an untreated projectile comprising: a projectile comprising a higher atomic concentration of Ca and a reduced friction in the treated projectile than a comparable untreated projectile.