British Radway Green L2A2 7.62x51 Ammunition in ammo cans (personally counted and verified count of 250 rounds each) Origin. Produced at the Radway Green Arsenal in England for the British Military. Designation. Often found as L2A2 ball ammunition. which is considered highquality NATO spec ammo. Specifications. Commonly features a 150 grain FMJ bullet with a brass case. Known for having a stronger thicker case head to prevent separation when fired from L4 light machine guns. Price is per ammo can.