A sabot having an extended casing for containing propellant charge and a slotted top portion for securing a projectile. The propellant charge is ignited by gases that enter the lower portion of the sabot from a puncture developed by the mating of the sabot against a breech plug. The breech plug has a piercing component in the form of a sharpened forward edge to initiate puncture of the breech end of the sabot.

This ammunition and weapon system, in which a projectile (7) is thrust by a propellant gas obtained from the combustion of a propellant charge (10) inside a barrel (4) that is closed at one end by a breech (1) and is open at its other end, is characterized that at least part of the propulsion gases generated by the combustion of the propellant charge (10) runs through a nozzle (3) which is located in the barrel (4), between the breech (1) and the projectile (7), and which comprises a convergent (3a), a neck (3b) and a divergent (3c), one after the other in the direction of the open end of the barrel.

This ammunition and weapon system, in which a projectile (7) is thrust by a propellant gas obtained from the combustion of a propellant charge (10) inside a barrel (4) that is closed at one end by a breech (1) and is open at its other end, is characterized that at least part of the propulsion gases generated by the combustion of the propellant charge (10) runs through a nozzle (3) which is located in the barrel (4), between the breech (1) and the projectile (7), and which comprises a convergent (3a), a neck (3b) and a divergent (3c), one after the other in the direction of the open end of the barrel.

An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.

An aeromechanically stable sabot system that includes a center of gravity that is placed forward of an aerodynamic center of the aeromechanically stable sabot system when in steady-state flight. By placing the center of gravity forwards of the aerodynamic center, the sabot system exhibits positive longitudinal and directional stability. To illustrate, the sabot system and/or portions thereof will return to stable flight after being disturbed in pitch (vertically or about a transverse horizontal axis) or yaw (side to side or about a vertical axis) when traveling horizontally.