223 Rem – 55 gr FMJ – Winchester USA (W223K) – 1000 Rounds

This 1,000 round case of Winchester USA W223K loads the 223 Remington with a 55 grain full metal jacket bullet. It is the familiar white box 223 ammo that shooters have trusted for years, and buying it by the case keeps your AR fed for a full season of range days.

W223K is rated at 3,240 fps with 1,282 ft-lbs of muzzle energy. Winchester says the USA line uses modern propellants that burn cleaner and reduce barrel fouling, and it is loaded for shot to shot consistency. The 55 grain FMJ feeds reliably and is the standard choice for plinking, zeroing, drills and steel targets. Because the bullet does not expand, this is a target load, not a hunting or defensive round.

The 223 Remington is the civilian twin of the 5.56x45mm NATO and one of the most popular centerfire rifle cartridges in America. It is chambered in AR-15 rifles, bolt action varmint and target rifles, and many single shot rifles and pistols. 223 Remington ammo can be fired in rifles chambered for 5.56 NATO, but 5.56 NATO ammo should not be fired in a rifle chambered only for 223 Remington, so always check the marking on your barrel before loading. Mild recoil, wide availability and a huge choice of rifles make it the go to cartridge for new shooters, competitors and varmint hunters alike.

Winchester packs W223K in boxes of 20 rounds, and this case holds 50 boxes for a total of 1,000 rounds. Each round uses a brass shellcase, and the 20 round boxes make it easy to count out ammo for a class or split a case with a friend. Store it in a cool, dry place away from direct sunlight, extreme heat and solvents, and keep the boxes sealed until use to protect the cartridges from moisture. Ammunition stored this way stays ready for years, so buying by the case is a practical way to keep a steady supply on hand.