Bushmaster IV

The Bushmaster IV is a 40 mm chain-driven autocannon designed and built by Alliant Techsystems, based on the M242 Bushmaster, Bushmaster II and Bushmaster III.[1][2] The Bushmaster IV fires 40×365mmR 3P (Prefragmented, Programmable, Proximity-fuzed), APFSDS-T Mk I, and APFSDS-T Mk II rounds. The 3P round will provide air burst capability and the APFSDS-T Mk II can penetrate armor with a thickness in excess of 150 millimeters.[3]

Bushmaster IV
TypeChain-driven autocannon
Place of originUnited States
Production history
DesignerAlliant Techsystems
ManufacturerAlliant Techsystems
Specifications
MassReceiver: 198 kg (437 lb)
Feeder: 29 kg (64 lb)
Barrel: 138 kg (304 lb)
Total: 365 kg (805 lb)
Length4,018 mm (158.2 in)
Width430 mm (17 in)
Height478 mm (18.8 in)
Cartridge40×365mmR
ActionOpen bolt
Feed systemLinkless feed

Specifications

The Bushmaster IV requires 5 hp (3.7 kW) at 24 volts to operate, fires from a cook off safe open bolt with absolute hangfire protection, and ejects forwards. It fires NATO standard 40×365mm ammunition from an integral linkless feed and has a recoil force of 62,272 N (13,999 lbf). The ammunition was originally developed for the Bofors 40mm L/70 cannon.

See also

References
  1. "40mm Bushmaster IV Automatic Cannon". Archived from the original on 2 April 2014.{{cite web}}: CS1 maint: unfit URL (link)
  2. "Bigger, badder Bushmaster cannon in the works". 8 November 2013. Archived from the original on 30 December 2013.
  3. Borén, Michael (June 2002). "Presentation of the Bofors 3P and System Concept" (PDF). Archived from the original (PDF) on 28 February 2013. Retrieved 30 December 2013.


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