DULLES, Va.--(BUSINESS WIRE)--Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense technologies, announced today that the M829E4 Advanced Kinetic Energy 120mm tactical tank cartridge has passed First Article Acceptance Testing and is entering into production. A full material release decision is expected prior to government fiscal year 2016. Orbital ATK’s current M829E4 production contract includes this first year’s production and exercisable options for two follow-on productio