Abstract: An explosive composition for use in telescopically expanding non-lethal training ammunition comprises tetrazene and paraffin wax. The explosive composition can be used as a primer and/or as a source of energetic material in a telescopically expanding non-lethal training cartridge; it can be used to propel a projectile from a telescopically expanding non-lethal training cartridge; and/or it can be used to expand telescopically a non-lethal training cartridge within a host gun.

Abstract: An explosive composition for use in telescopically expanding non-lethal training ammunition comprises tetrazene and paraffin wax. The explosive composition can be used as a primer and/or as a source of energetic material in a telescopically expanding non-lethal training cartridge; it can be used to propel a projectile from a telescopically expanding non-lethal training cartridge; and/or it can be used to expand telescopically a non-lethal training cartridge within a host gun.

Abstract: A cartridge for use in a gun comprises a case, a gas generator, a piston, a stopper, and at least one channel for the passage of gas in and/or around the stopper wherein the piston is axially slideably contained in the case, the gas generator is located within the case adjacent a first end of the case, and the stopper is slideably contained within the piston for closing the at least one channel.

Abstract: An explosive composition for use in telescopically expanding non-lethal training ammunition comprises tetrazene and paraffin wax. The explosive composition can be used as a primer and/or as a source of energetic material in a telescopically expanding non-lethal training cartridge; it can be used to propel a projectile from a telescopically expanding non-lethal training cartridge; and/or it can be used to expand telescopically a non-lethal training cartridge within a host gun.

Abstract: The invention provides a marker projectile a hollow body (4) having an opening at the front; a marker substance (3) disposed within the hollow body (4); and an expelling member (5) within the hollow body (4) behind the marking substance (3); the hollow body (4) and expelling member (5) being configured such that upon impact of the projectile with a target, the momentum of the expelling member (5) relative to the hollow body (4) carries the expelling member (5) forwardly to expel the marking substance (3) through the opening, a separator (1) extending at least partly over the front opening, the separator (1) defining two or more spaces through which the marker substance (3) may pass when expelled through the opening and characterized by a deformable closing member (2) positioned between the marking substance (3) and the separator (1), the closing member (2) configured to deform under the impact of the travelling expelling member (5) whereby to release the marking substance (3) from the hollow body (4).

Abstract: A cartridge for use in a gun comprises a case, a gas generator, a piston, a stopper, and at least one channel for the passage of gas in and/or around the stopper wherein the piston is axially slideabiy contained in the case, the gas generator is located within the case adjacent a first end of the case, and the stopper is slideabiy contained within the piston for closing the at least one channel.

Abstract: The invention provides a marker projectile a hollow body (4) having an opening at the front; a marker substance (3) disposed within the hollow body (4); and an expelling member (5) within the hollow body (4) behind the marking substance (3); the hollow body (4) and expelling member (5) being configured such that upon impact of the projectile with a target, the momentum of the expelling member (5) relative to the hollow body (4) carries the expelling member (5) forwardly to expel the marking substance (3) through the opening, a separator (1) extending at least partly over the front opening, the separator (1) defining two or more spaces through which the marker substance (3) may pass when expelled through the opening and characterised by a deformable closing member (2) positioned between the marking substance (3) and the separator (1), the closing member (2) configured to deform under the impact of the travelling expelling member (5) whereby to release the marking substance (3) from the hollow body (4).

Abstract: A telescopically expandable cartridge comprising an anterior portion 1 and posterior portion 2, the posterior portion 2 carries a first primer 3 which when initiated releases gases which propel a ball 4 along a channel 5 to impact upon a second primer 6 in the anterior portion 1. First primer 3 is configured for centre firing. The cartridge is located in the barrel of a weapon which has an off set firing pin 7. An adapter 8 is received in a recess in the posterior portion 2 to the rear of the first primer 3 and directly in front of the firing pin 7. The adapter 8 comprises a cylindrical body having an annular recess 9 provided around its outer circumference. An O-ring 10 is received in the annular recess 9. On an anterior surface of the adapter 8 proximal to the first primer 3 is provided a pointed protrusion 11 positioned centrally of the anterior surface.

Abstract: A cartridge for non-lethal applications comprises a posterior portion 1 which extends axially to provide a cylindrical casing. An anterior portion comprises of a nose portion 2 with a centrally located recess 8 for receiving a projectile, and an axially extending piston 3 which is slidably engaged in the chamber defined by the cylindrical casing 1. A posterior primer 4 is located to the end of the posterior portion which is most distal to the nose portion 2. An anterior primer 5 sits just behind the recess 8 of the nose portion 2. A plastic striker is located in the chamber defined by the cylindrical casing 1 and comprises of a sealing flange portion 6 and striking nose portion 7. The striking nose portion 7 locates snugly but slidably in a second chamber provided axially within the piston 3.

Abstract: A cartridge for non-lethal applications comprises a posterior portion 1 which extends axially to provide a cylindrical casing. An anterior portion comprises of a nose portion 2 with a centrally located recess 8 for receiving a projectile, and an axially extending piston 3 which is slidably engaged in the chamber defined by the cylindrical casing 1. A posterior primer 4 is located to the end of the posterior portion which is most distal to the nose portion 2. An anterior primer 5 sits just behind the recess 8 of the nose portion 2. A plastic striker is located in the chamber defined by the cylindrical casing 1 and comprises of a sealing flange portion 6 and striking nose portion 7. The striking nose portion 7 locates snugly but slidably in a second chamber provided axially within the piston 3.

Abstract: A blank cartridge (1) comprises a cartridge casing (2) with a first primer (18); a piston (9) with a head (10) and an arm (11); and an expansion chamber located between said primer (18) and the head of the piston (10), wherein, following detonation of the primer, the piston slidably displaces substantially within the casing (2) of said cartridge (1).

Abstract: A blank cartridge (1) comprises a cartridge casing (2) with a first primer (18); a piston (9) with a head (10) and an arm (11); and an expansion chamber located between said primer (18) and the head of the piston (10), wherein, following detonation of the primer, the piston slidably displaces substantially within the casing (2) of said cartridge (1).

Abstract: A training cartridge (5) and gun barrel insert (1) assembly, wherein: a) the training cartridge (5) comprises a sleeve (17) shaped and configured to fit the breech of a gun and which holds a primer (21) and bullet (20) assembly; the assembly being located at the rear portion of the cartridge (5); a channel (22) extending forward from the bullet (20) and a recessed front channel portion (4) for receiving the sub-calibre barrel portion (3) of a corresponding gun barrel insert (1); and b) the corresponding gun barrel insert (1) comprises a sleeve (2) shaped and configured to fit at least in part into the barrel (10) of a gun; the sleeve (2) being located around a sub-calibre barrel (3); wherein the sub-calibre barrel (3) extends rearward beyond the sleeve (2) in order to project into the recessed front channel portion (4) of the corresponding training cartridge (5) .

Abstract: The invention provides a marker projectile comprising a hollow body (1) having an opening (5) at the front; marker substance (8) disposed within the hollow body (1); and an expelling member (7) such as a metal ball within the hollow body (1), behind the marking substance (8). The hollow body (1) and expelling member (7) being configured such that upon impact of the projectile with a target, the momentum of the expelling member (7) relative to the hollow body (1) carries the expelling member (7) forwardly to expel the marking substance (8) through the opening (5), and characterised by a separator (4) extending at least partly over the front opening (5), the separator (4) defining two or more spaces (42a, 42b, 42c) through which the maker substance may pass when expelled through the opening (5).

Abstract: The invention provides a training cartridge having a peripheral fire primer and a gun modified to fire the cartridge. The combination of modified gun and peripheral fire cartridge avoids the potentially adverse consequences that could arise if live ammunition and training ammunition were to become inadvertently confused or mixed up by preventing the firing of live center fire ammunition.

Abstract: The invention provides a training cartridge (304) having a peripheral fire primer (306) and a gun modified to fire the cartridge. The combination of modified gun and peripheral fire cartridge avoids the potentially adverse consequences that could arise if live ammunition and training ammunition were to become inadvertently confused or mixed up by preventing the firing of live centre fire ammunition.

Abstract: A cartridge for use in non-lethal applications comprising an anterior portion and a posterior portion, the posterior portion comprising a recycling mechanism including a moveable member in the form of a piston or cylinder, slideably engaged respectively with a cylinder or a piston, gas generating means for providing gas within the cartridge, the gas generating means being initiatable by the primer on firing of the firearm to propel the moveable member in a rearward direction against the breech block so as to recycle the firearm, the anterior portion having a gas passage therethrough and being provided with a nose portion which is suitable for receiving a projectile; an expansion chamber being provided between the moveable member and the anterior portion, a source of energetic material located in the anterior portion forward of the gas channel, a percussion means of cross sectional dimension slightly smaller than the gas channel and moveable therein the energetic material being initiatable by a shock or pressu

Abstract: A cartridge for use in non-lethal applications comprising an anterior portion and a posterior portion, the posterior portion comprising a recycling mechanism including a moveable member in the form of a piston or cylinder, slideably engaged respectively with a cylinder or a piston, gas generating means for providing gas within the cartridge, the gas generating means being initiatable by the primer on firing of the firearm to propel the moveable member in a rearward direction against the breech block so as to recycle the firearm, the anterior portion having a gas passage therethrough and being provided with a nose portion which is suitable for receiving a projectile; an expansion chamber being provided between the moveable member and the anterior portion, a source of energetic material located in the anterior portion forward of the gas channel, a percussion means of cross sectional dimension slightly smaller than the gas channel and moveable therein the energetic material being initiatable by a shock or pressu

Abstract: The invention provides a blank pyrotechnic cartridge comprising a cartridge casing having a bullet-like projection extending forwardly therefrom, the bullet-like projection being retractable through an opening in the casing when the cartridge is fired, the cartridge being axially expandable in a rearwards direction in use to move the breechblock of a firearm to recycle the firearm. Also provided is a method of feeding blank ammunition into the barrel of a gun comprising the step of loading the gun with a blank cartridge, the blank cartridge comprising a cartridge casing having a bullet-like projection extending forwardly therefrom, the bullet-like projection being retractable through an opening in the casing when the cartridge is fired, the cartridge being axially expandable in a rearwards direction in use to move a breechblock of the gun to recycle the gun.

Abstract: A cartridge for use in non-lethal applications comprising an anterior portion and a posterior portion. The posterior portion of the cartridge includes a recycling mechanism that is initiated by activating a first primer. The anterior portion of the cartridge includes a source of energetic material that is constructed to be initiated or activated by a reaction produced upon activation of the first primer to create an audible signal.