Service: US Army Armament: Guns: 1× 30 mm M230 Chain Gun; or 2× .50 cal GAU-19; or 2× 7.62 mm M134 Minigun; 2× LAU-68D/A rocket pods; Hydra 70 rockets; 2× AGM-114 Hellfire; 2× FIM-92 Stinger ...

308 Winchester. The round works in the M60 and M240 machine guns and a host of 7.62mm rifles, including the M24 sniper rifle and M110 sniper rifle.

For illustrative purposes. (Janes/ Amael Kotlarski) Heckler & Koch (H&K) is currently developing a 5.56×45 mm version of the HK421 light machine gun (LMG), which is currently chambered in 7.62× ...