Firing a .2245 in (5.70 mm) projectile, the .223 Remington is considered one of the most popular common-use cartridges and is used by a wide range of semi-automatic and manual-action rifles.

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

223 Remington is the choice for competition shooters, law enforcement, predator hunters, and shooting enthusiasts across the world. Remington offers 223 ammo across 5 product lines and seven different …

Take a look at our selection of .223 Remington and 5.56 NATO ammo from top manufacturers. We carry the best .223 Rem and 5.56mm ammo on the market.

The history of .223 ammunition, also known as 223 Remington or 5.56 ammo, dates back to the mid-1960s. Developed by Remington Arms as a commercial cartridge for hunting and varmint shooting.

Whether you're into tactical shooting or want a bolt action varmint gun, MidwayUSA has 223 Rifles to fit your needs. This versatile cartridge is available in all your favorite brands like Savage, Colt, Tikka, …

Make sure you're geared up and ready to hit the range. Explore .223 Remington rifles at Academy Sports + Outdoors.

Jan 8, 2026 · Confused about .223 vs 5.56 vs .223 Wylde? This guide breaks down what’s safe to shoot, accuracy differences, and which chamber is best for your needs.

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