223 ammo test. If you want to fire 5.56 NATO ammo through your .223 chamber, proceed carefully and watch for any excessive pressure signs. If you’re buying a new gun or barrel, you can eliminate any ...

The Army is one step closer to producing millions of rounds each year of its newest caliber for the service’s newest rifle ...

Heckler & Koch (H&K) is currently developing a 5.56×45 mm version of the HK421 light machine gun (LMG), which is currently ...

Lake City has been a major source of small arms ammunition for the Army and other services for decades. Historically, the plant has produced 5.56 mm, 7.62 mm, .50 Browning Machine Gun, and 20 mm ...