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An enhanced fire control system improves long-range accuracy to kill targets with fewer bursts, sometimes as few as two or three rounds instead of 10. The XM813 30 mm cannon is intended to replace the M242 Bushmaster 25 mm chain gun, and can be mounted on vehicles other than the Bradley. Two capabilities not demonstrated were its linkless ...
Modifications were made to the hull roof of the Stryker in order to install a Kongsberg unmanned turret with an XM813 30 mm cannon, capable of firing airburst munitions. [136] This added around two tons of weight to the vehicle. The new cannon has significantly increased lethality, range and accuracy over the previous M2 heavy machine gun. [137 ...
The cannon is a larger and more modern version of the 35 mm Bushmaster III chain gun, which itself is a larger version of the 25 mm M242 Bushmaster cannon. Although its shells, 50 x 228 mm, are twice the diameter of the 25×137mm cartridge of the M242, the 50mm cannon is not much longer than the smaller weapon. [ 2 ]
[a] XM813 [b] M240C (7.62×51mm NATO) [d] 4 × 4 M257 (76mm) Mowag Piranha IIIH: Piranha IIIH – MRV "Medium Reconnaissance Vehicle" Switzerland: Irish Army [109] Hitfist 30 turret (by Oto Melara) equipped with: [a] Mk44S Bushmaster II [b] FN MAG (7.62×51mm NATO) [d] 2 × 4 smoke grenade dispensers (66 mm) Mowag Piranha IIIC
The M242 25 mm chain gun. A chain gun is a type of autocannon or machine gun that uses an external source of power to cycle the weapon's action via a continuous loop of chain, similar to that used on a motorcycle or bicycle, instead of diverting excess energy from the cartridges' propellant as in a typical automatic firearm.
The XM813 Bushmaster, also produced by ATK Defense, is based on the Mk44 and is offered as an upgrade for M1126 Stryker and M2 Bradley. Improvements include a one-inch longer barrel, integral mount to increase first round hit probability by up to 10 percent, and dual recoil system to enhance accuracy and cope with future hotter propellants.
The M230 Cannon is a 30 mm (30×113 mm), single-barrel electrically-driven autocannon, using external electrical power (as opposed to recoil or expanding gas generated by the firing cartridge) to cycle the weapon between shots.
This variant weight 35 t (77,000 lb), and has a payload of 3.30 t (7,300 lb). It is equipped with a Kongsberg RT-20 remote turret using the Mk44 Bushmaster II (XM813) chain gun, with a calibre of 30×173mm. In August 2022, the USMC awarded BAE System with a contract to manufacture multiple production-ready test vehicles (PRTV) for US$88 million.