ATK secures $20M contract from U.S. Army ATK announced it was awarded a Fixed Price Indefinite Delivery/Indefinite Quantity contract from the U.S. Army for the production of Mk248 Mod 0, 190-grain and Mk248 Mod 1, 220-grain 300 Win. Magnum rifle ammunition. The Army has selected this ammunition for primary use in its M2010 Sniper rifle. The five-year 300 Win Mag ammunition contract is in its first year. The contract has a total of five 12-month ordering periods. This award has an estimated maximum value of $20M over the life of the contract, and an initial delivery order for the ammunition was received at the time of the award.