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30×173mm Round

30×173mm cartridges are used by the Mk44 Bushmaster II and the GAU-8 Avenger Gatling Cannon. The family of rounds include, among others, target practice, high explosive incendiary, programmable air burst munitions and Depleted Uranium penetrator cartridges.

MK239 Target Practice - Tracer

The MK239 Target Practice - Tracer cartridge is a low-cost training ammunition, ballistically matched with the MK264.

Contractors

Manufacturer: General Dynamics Ordnance and Tactical Systems
Manufacturer: Orbital ATK

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 670 grams 10 340 grains
Projectile weight: 365 grams 5 633 grains
Propellant weight: 153 grams 2 361 grains
Features
Muzzle velocity (typical): 1 080 meters per second 3 540 feet per second
Chamber pressure: 345 megapascals 50.4 kilopound per square inch
Dispersion: 0.5 milliradians
Effective range (naval): 5 100 meters 16 730 feet
Miscellaneous
Cartridge case material: aluminium
Primer: M36A2 Percussion

MK264 Multipurpose Low Drag - Tracer

The MK264 Multipurpose Low Drag - Tracer cartridge provides light armor piercing capability with a delayed explosive reaction using a chemical fuze. It is available with and without self-destruct functionality.

Contractor

Manufacturer: General Dynamics Ordnance and Tactical Systems

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 835 grams 12 886 grains
Projectile weight: 363 grams 5 602 grains
Propellant weight: 150 grams 2 315 grains
Features
Muzzle velocity (typical): 1 070 meters per second 3 510 feet per second
Chamber pressure: 345 Megapascals 50.4 kilopound per square inch
Dispersion: 0.5 milliradians
Effective range (naval): 5 100 meters 16 730 feet
Miscellaneous
Cartridge case material: aluminium
Primer: M36A2 Percussion

MK266 High Explosive Incendiary - Tracer

The MK266 High Explosive Incendiary - Tracer cartridge provides the accuracy and lethality for light materiel, antipersonnel and fire suppression roles. As opposed to the MK238, thisa round does not have a self-destruct function.

Contractor

Manufacturer: Orbital ATK

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 670 grams 10 340 grains
Projectile weight: 362 grams 5 587 grains
Propellant weight: 153 grams 2 361 grains
Features
Muzzle velocity (typical): 1 050 meters per second 3 445 feet per second
Chamber pressure: 345 Megapascals 50.4 kilopound per square inch
Dispersion: 0.5 milliradians

MK268 Armor Piercing Fin Stabilized Discarding Sabot

The MK268 Armor Piercing Fin Stabilized Discarding Sabot with Trace (APFSDS-T) cartridge uses a tungsten penetrator which offers significant penetration capability.

Contractor

Manufacturer: Orbital ATK

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 725 grams 11 188 grains
Projectile weight: 235 grams 3 627 grains
Propellant weight: 176 grams 2 716 grains
Features
Muzzle velocity: 1 385 meters per second 4 540 feet per second
Chamber pressure: 360 Megapascals (ambient) 52.21 kilopound per square inch (ambient)
Dispersion: 0.4 milliradians
Minimum tracer burnout time: 2 seconds
Miscellaneous
Cartridge case material: steel
Primer: percussion

MK310 Programmable Air Burst Munition - Tracer

The MK310 Programmable Air Burst Munition - Tracer cartridge is a versatile round, offering air burst, point detonate and point detonate with delay fuze settings. It van provide lethal suppressive firethrough its air burst function or it can be used to penetrate light armor vehicles or reinforced concrete walls. It also has the capability to delay detonation, allowing it to penetrate a wall and detonate behind the wall or inside a room for lethal effect.

Contractor

Manufacturer: Orbital ATK

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 713 grams 11 003 grains
Projectile weight: 423 grams 6 528 grains
Propellant weight: 150 grams 2 315 grains
Features
Muzzle velocity (typical): 980 meters per second 3 215 feet per second
Chamber pressure: 360 Megapascals 52.21 kilopound per square inch
Dispersion: 0.5 milliradians

PGU13D/B

The PGU13D/B cartridge uses the M505 fuze, providing a high explosive round that has been used by the U.S. Air Force extensively in the GAU-8 Avenger Gatling Cannon.

Contractor

Manufacturer: General Dynamics Ordnance and Tactical Systems

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 670 grams 10 340 grains
Projectile weight: 363 grams 5 602 grains
Propellant weight: 147 grams 2 269 grains
Features
Muzzle velocity (typical): 1 020 meters per second 3 346 feet per second
Chamber pressure: 375 Megapascals 54.39 kilopound per square inch
Dispersion: 0.6 x 0.6
Effective range (naval): 1 220 meters 4 000 feet
Miscellaneous
Cartridge case material: aluminium
Primer: M36A2 Percussion

PGU14/B

The PGU14/B Armor Piercing Incendiary round has a lightweight body which contains a sub-caliber high density penetrator of Depleted Uranium (DU). In addition to its penetrating capability, DU is a natural pyrophoric material which enhances the incendiary effects. This round has been used by the U.S. Air Force extensively in the GAU-8 Avenger Gatling Cannon.

PGU15A/B

The PGU-15A/B cartridge is a low cost training round ballistically matched with the PGU-13D/B.

Contractor

Manufacturer: General Dynamics Ordnance and Tactical Systems

Characteristics

Dimensions
Cartridge length: 290 millimeters 11.42 inches
Weight
Cartridge weight: 670 grams 10 340 grains
Projectile weight: 363 grams 5 602 grains
Propellant weight: 147 grams 2 269 grains
Features
Muzzle velocity (typical): 1 020 meters per second 3 346 feet per second
Chamber pressure: 375 Megapascals 54.39 kilopound per square inch
Dispersion: 0.6 x 0.6
Effective range (naval): 1 220 meters 4 000 feet
Miscellaneous
Cartridge case material: aluminium
Primer: M36A2 Percussion

MK258

MK317