It was developed in 1957 by Remington Arms and Fairchild Industries for the U.S. Continental Army Command of the United States Army as part of a project to create a small-caliber, high-velocity firearm.

223 Remington bolt, semi-auto and lever action rifles for small game, medium game, and predator hunting.

Some of Remington’s most popular 223 ammo is our line of UMC ammo. It’s a go-to choice for high volume target shooting or training, offering consistent performance and great value.

Explore .223 Remington rifles at Academy Sports + Outdoors.

Learn the history and technical differences between .223 Remington and 5.56×45mm NATO, plus safety tips on interchangeability and .223 Wylde.

Oct 17, 2024 · Since its commercial release, the .223 Remington has become widely popular, with a broad range of semi-automatic and manual-action rifles available for it. Its popularity in America has …

May 23, 2025 · Many .223 hunting rounds are loaded with frangible, light-jacketed bullets designed for rapid expansion. Such bullets are great for quickly knocking down coyotes, and can work on deer — …

Dec 6, 2024 · Learn about the .223 caliber, its definition, measurement, and size, as well as its use in rifles, pistols, and ammunition, plus its ballistics and applications.

.223 Remington Rifle Ammunition is a versatile cartridge renowned for its flat trajectory, mild recoil, and adaptability across various shooting disciplines. Originally developed in 1957 for the Armalite AR-15, …