Firearm projectiles with turbulence-inducing surfaces, firearm cartridges including the same, and associated methods. A firearm projectile comprises a projectile body and a turbulence-inducing surface at least substantially enclosing the projectile body. The firearm projectile is at least substantially spherical. The turbulence-inducing surface is configured to induce a drag crisis in a drag coefficient of the firearm projectile when the firearm projectile travels through air with a Reynolds number that is less than 300,000.

A gas propelled munitions anti-fouling system has a case having an open forward mouth end, a rear end, and an interior, the rear end defining a pocket that receives a primer and a passage communicating between the pocket and the interior of the case, a quantity of propellant received within the interior of the case, a quantity of anti-fouling composition received within the interior of the case, and a bullet having a rear portion inserted into the open forward mouth end of the case. The anti-fouling composition may have at least one salt and at least one acid. The acid may be anhydrous. The salt may be sodium chloride or sodium nitrate. The acid may be anhydrous citric acid. The anti-fouling composition may have at least one abrasive. The abrasive may be stannic acid. The anti-fouling composition may be 50% salt by weight and 50% acid by weight.

Shot projectiles are disclosed that are not completely spherical. The shot has an equatorial ring, top and bottom poles, and one or more sections extending between the ring and the respective poles. The ring defines a vertical height relative to an overall diameter of the projectile. The one or more sections provide flat, concave, or convex surfaces.

The present invention concerns a cartridge for firearms comprising a cartridge case with a crown of wings. The wings themselves are fused or glued to one another so as to form an ogival closing element of the cartridge case. The invention also concerns the process for manufacturing the cartridge and the relative equipment.

A shotshell comprising a casing having a top end and bottom end, and a longitudinal axis that runs from the top end to the bottom end; a base disposed at and sealing the bottom end of the casing; a propellant disposed toward the bottom end of the casing, above the base; a primer set into the base and in contact with the propellant; a wad disposed above the propellant; a plurality of shot pellets; a payload carrier disposed between the wad and the top end of the casing, the payload carrier comprising one or more longitudinal chambers, each chamber configured to store a portion of the plurality of shot pellets in a single file column aligned parallel to the longitudinal axis of the casing.

Described are spherical projectiles such as used in birdshot, buckshot, or single ball spherical projectiles, including slugs, muzzle loading projectiles, or any close-to-bore diameter projectile, that is auto-segmenting or self-segmenting upon impact with a target. The projectile or shot disclosed herein retains its shape and structure during flight until impact with soft tissue, whereupon its individual sections separate or segment in a controllable manner, each portion of the projectile imparting or depositing a high amount energy to the tissue and target. The auto-segmenting spherical projectiles can be frangible or non-frangible. This disclosure also provides cartridges such as shotshells that are loaded with the projectiles described herein.

Firearm cartridges, firearm projectiles, and/or projectile components formed at least in part from a disclosed ballistic zinc alloy. These ballistic zinc alloys overcome shortcomings of other lead substitutes for firearm projectiles, including Zamak alloys and other conventional zinc alloys. In some embodiments, and as compared to a firearm projectile formed from a conventional zinc alloy, a ballistic zinc alloy firearm projectile has at least one of an increased ductility, an increased frangibility, and/or a decreased tendency to smear or gall within a rifled firearm barrel. In some embodiments, the ballistic zinc alloy is a zinc-aluminum alloy that includes additional alloy components that collectively enhance the properties of the ballistic zinc alloy for use in firearm projectiles.

A shotshell comprising a casing having a top end and bottom end, and a longitudinal axis that runs from the top end to the bottom end; a base disposed at and sealing the bottom end of the casing; a propellant disposed toward the bottom end of the casing, above the base; a primer set into the base and in contact with the propellant; a wad disposed above the propellant; a plurality of shot pellets; a payload carrier disposed between the wad and the top end of the casing, the payload carrier comprising one or more longitudinal chambers, each chamber configured to store a portion of the plurality of shot pellets in a single file column aligned parallel to the longitudinal axis of the casing.

An offensive charge intended for the manufacture of a cartridge for firing with a firearm does not contain lead. It is made of multiple projectiles (10), in which the projectiles are formed of at least two substantially spherical pellets (5) connected to one another by a metal connecting wire (6) of fixed predetermined length, the pellets being made of an alloy containing tin and antimony. A cartridge containing such projectiles, and a method for the mass-production of these lead-free projectiles are also described.

A shotshell including a hull with a metal head, a base wad, a primer and an outer tubular element, a powder housed inside the hull, and a wad housed inside the outer tubular element and above the powder. The wad includes an inner tubular element adapted to contain a plurality of pellets and having a first and a second end, and a side wall, and a sealing element. A side wall of the inner tubular element contacts an inner side wall of the outer tubular element. The sealing element is inside the outer tubular element of the shotshell between the powder and the first end of the inner tubular element and an outer side wall of the sealing element being in contact with the inner side wall of the outer tubular element, and outside the inner tubular element and in contact with the first end of the inner tubular element.