Abstract: A polymer-based ammunition cartridge casing including a casing body having proximal and distal end and a longitudinal cylindrical wall extending between the proximal and the distal ends and enveloping a hollow interior of the casing body, wherein the longitudinal cylindrical wall of the casing body includes: a first longitudinal wall portion including the proximal end of the casing body and shaped to connect to a casing base, and further shaped such that when the casing base is connected, at least most of an outer surface of the casing base remains exposed; a second longitudinal wall portion connected at its proximal end to a distal end of the first longitudinal wall portion, wherein a minimal inner diameter of the first longitudinal wall portion is smaller than an inner diameter of the proximal end of the second longitudinal wall portion. The cartridge casing may include more than two longitudinal wall portions.

Abstract: A polymer-based ammunition cartridge casing including a casing body having proximal and distal end and a longitudinal cylindrical wall extending between the proximal and the distal ends and enveloping a hollow interior of the casing body, wherein the longitudinal cylindrical wall of the casing body includes: a first longitudinal wall portion including the proximal end of the casing body and shaped to connect to a casing base, and further shaped such that when the casing base is connected, at least most of an outer surface of the casing base remains exposed; a second longitudinal wall portion connected at its proximal end to a distal end of the first longitudinal wall portion, wherein a minimal inner diameter of the first longitudinal wall portion is smaller than an inner diameter of the proximal end of the second longitudinal wall portion. The cartridge casing may include more than two longitudinal wall portions.

Abstract: According to some embodiments of the present invention, an ammunition cartridge is provided herein. The ammunition cartridge may include a cartridge enclosure comprising a cartridge case portion and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling; and a base, connectable to the cartridge enclosure, wherein the base comprises an ignition device, wherein the cartridge enclosure comprises a section configured to control the detachment of at least some of the jacket portion from the cartridge case. According to some embodiments of the present invention, another ammunition cartridge is provided herein. The ammunition cartridge may include: a cartridge case portion; and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling, wherein the jacket portion is made of at least one of: polymer material, and composite material.

Abstract: According to some embodiments of the present invention, an ammunition cartridge is provided herein. The ammunition cartridge may include a cartridge enclosure comprising a cartridge case portion and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling; and a base, connectable to the cartridge enclosure, wherein the base comprises an ignition device, wherein the cartridge enclosure comprises a section configured to control the detachment of at least some of the jacket portion from the cartridge case. According to some embodiments of the present invention, another ammunition cartridge is provided herein. The ammunition cartridge may include: a cartridge case portion; and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling, wherein the jacket portion is made of at least one of: polymer material, and composite material.

Abstract: A small-caliber projectile having a length Lb, a forward ogive-shaped section, a rear generally cylindrical shaped section, a core, and a jacket generally surrounding the core. The core has a front/penetrator core portion and a soft/heavy rear core portion, wherein the front/penetrator core portion is made of a tungsten alloy and has a length Lp and the soft/heavy rear core portion is made of a lead alloy and has a length Lr and the ratio Lp to Lb is in the range of 0.2 to 0.5.

Abstract: A small-caliber projectile having a length Lb, a forward ogive-shaped section, a rear generally cylindrical shaped section, a core, and a jacket generally surrounding the core. The core has a front/penetrator core portion and a soft/heavy rear core portion, wherein the front/penetrator core portion is made of a tungsten alloy and has a length Lp and the soft/heavy rear core portion is made of a lead alloy and has a length Lr and the ratio Lp to Lb is in the range of 0.2 to 0.5.