.223 Remington / 5.56x45mm NATO ammo is the backbone of modern sporting rifles and one of the most popular rifle cartridges in the world. Originally developed in the 1960s for military use, the 5.56 NATO quickly gained traction in civilian markets as the .223 Remington, offering nearly identical dimensions with slight differences in chamber pressure and throat design. Today, .223/5.56 ammo is the go-to choice for everything from home self-defense to hunting and target shooting.
Lightweight and fast, these rounds deliver high velocity and low recoil, making them ideal for rapid-fire scenarios and accurate follow-up shots. Standard bullet weights range from 55gr to 77gr, with a wide selection of FMJ, hollow point, soft point, and ballistic tip loads to suit your exact purpose—whether it’s varmint control, tactical use, or long-range accuracy.
The versatility of .223/5.56 makes it a top pick for AR-15 platforms, bolt-action rifles, and even some specialty pistols. Whether you’re stockpiling for training, preparing for emergencies, or tuning your rifle for precision, these rounds offer dependable performance shot after shot.
We have a full range of .223 Remington and 5.56 NATO ammo in stock and ready to ship, so you can load up with confidence and keep your rifle running at its best.
