The high-explosive incendiary MK266 rounds are for use with ATK's Bushmaster automatic cannon, a weapons system aboard the Navy's San Antonio class Landing Platform Dock ships and Littoral Combat Ships, but can be used with any cannon that fires 30mm x 173mm ammunition.
"We take great pride in developing and producing ammunition that provides superior performance and reliability," said Bruce DeWitt, vice president and general manager for ATK's Armament Systems division.
"Our medium-caliber expertise includes a full spectrum of highly effective and accurate tactical ammunition for air, ground and sea platforms as well as cost-effective training ammunition that provides a realistic experience for the warfighter."
ATK's MK266, a modification to the PGU-13 High Explosive Incendiary 30mm round, features a tracer and non-self-destruct, low-drag fuse for enhanced performance at extended ranges.
The ammunition will be produced at Allegany Ballistics Laboratory in Rocket Center, W.Va., and New River Energetics in Radford, Va. Deliveries will commence next year, the company said.
The five-year contract under which the order was given is worth as much as $41 million.
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