For practice, close-range drills, 3-gun events and more, you won't find a better value than Wolf Gold 5.56x45mm Ammo. inchM193 inch is the designation given to standard ball ammo designed for field use with the M16A1 rifle. NOTE: While the 5.56x45mm NATO round will fit in a .223 Remington chamber, 5.56 NATO is a military round that runs at higher pressures, and is not recommended for use in .223 Remington chambers. Order today!
