The U.S. Army has begun testing a new 50 mm XM913 Bushmaster Chain Gun as part of its effort to develop the next-generation mechanized combat vehicle that will succeed the M2 Bradley Fighting Vehicle, according to recent reports. Northrop Grumman has delivered 16 of these larger-caliber cannons to Army test units to support evaluations tied to the XM30 Mechanized Infantry Combat Vehicle competition. The shift to 50 mm represents a move toward greater direct-fire capability and adaptability for f

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