Edina-based Alliant Techsystems (ATK), the largest supplier of small-caliber ammunition to the United States military, has announced that it delivered 1.4 billion rounds to the military for FY 2008 and projects another 1.4 billion military rounds for FY 2009. The latest delivery numbers were accompanied by the announcement of a $415.6 million contract for additional ammunition and expansion of its plant in Independence, Mo.ATK delivered 1.2 billion rounds to the military in each of the first three years of the war in Iraq, and increased production to 1.4 billion in 2006. All told, ATK has delivered 6.4 billion rounds of small-caliber ammunition over the past five years to the military alone. But even that wasn’t enough, because in 2004 a military shortage in small-caliber munitions resulted in emergency contracts and the addition of General Dynamics of Falls Church, Va., as a second source of supply.