Welcome to the 556 Ammunition site, your source for 5.56×45 ammunition reviews and information. We’ll help you find the best 5.56 ammo for your AR rifle!
CMMG Adds One More Caliber To New AR Pistol Line-Up Fayette, MO — CMMG has announced that it will add a 5.56mm version to its recently released line-up of AR pistols. Aside from the caliber, the most notable difference in this new Mk4 K AR Pistol in 5.56mm is that it features a 12.5-inch barrel, compared …View full post
Buffman does a velocity test of Lake City Surplus 5.56x45mm (XM193) 55gr FMJ ammunition. The test rifles include a Yugo M85PV PAP with 10.25″ barrel and a Stag Arms Model 1L with 16″ barrel.View full post
Varmints Beware – CMMG Unveils the Mk4 V Series Fayette, MO—Varmint hunting can often present a variety of challenges that must be met. Whether it’s knocking down a long-range shot or tracking a moving target, speed and accuracy reign supreme. To meet these challenges, CMMG has introduced the Mk4 V and Mk4 V2, both chambered …View full post
A review and range test of AMA DENEX NATO 5.56×45 62gr M855 Ammunition. This 5.56×45 ammo features a 62 gr steel core copper jacketed bullet, brass case and non-corrosive boxer primer. The shooting rest used during this ammo test is the P3 Ultimate Shooting Rest from CTK Precision.View full post
A full-auto demo of the M249 SAW machine gun, chambered in 5.56x45mm NATO. M249 Machine Gun Specs: Cartridge: 5.56×45 mm NATO Action: Gas-operated, open bolt Cyclic Rate of Fire: 800 RPM Muzzle Velocity: 915 m/s (3,000 ft/s) Effective Firing Range: 700 m (770 yd) (point target) 3,600 m (3,940 yd) (maximum range) Feed System: M27 …View full post