finance.yahoo.com reports that the U.S. Army Contracting Command has awarded Alliant Techsystems (NYSE:ATK) a $50 million-plus contract for 20mm PGU ammunition. If all options are exercised (how Apocalypse Now does that sound?), ATK’s contract is expected to exceed $170 million by 2013. In case you were wondering, “TK will produce PGU-27A/B Target Practice (TP), PGU-30A/B Target Practice-Tracer (TP-T), PGU-28A/B Semi-Armor Piercing High Explosive Incendiary (SAPHEI) ammunition, a PGU-28A/B SAPHEI and PGU-30A/B TP-T linked configuration, and a PGU-27A/B TP and PGU-30A/B TP-T linked configuration. These cartridges are used on the U.S. Air Force’s F-15 and F-16, the U.S. Navy and Marine Corps F-18, and the U.S. Marine Corps Cobra AH-1 helicopter.”