Quote:
Originally Posted by cawest
the Bushmaster type weapons are chain drive, and the A-10 is a Gatling. the chain gun could be chambered in 30x173 (the a-10 round). it was called the Mk44 as far as i remember. the M2/3 have a 25mm and its 25x173m the M230 on the AH-64 shoots 30x113
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The one on the Dragoon is the XM813, which is a Mk44 with a longer barrel, a different mount, and an improved recoil system. By swapping out around a half dozen parts, it can fire either the 30x173mm GAU-8, 30x170mm Rarden, or 39x180mm Super Forty (it was originally a 40mm round, and the name stuck even after the caliber shrank slightly). AFAIK, the Army tests have all been with 30x173mm.