223 Rem – 55 Grain FMJ-BT – Federal American Eagle (AE223) – 20 Rounds

One box of 223 is a convenient way to test a new rifle, confirm zero, or add a few rounds to a larger order. This listing is Federal American Eagle 223 Remington 55 grain full metal jacket boat tail ammo, MPN AE223, sold as a single 20 round box. American Eagle is one of the most popular range loads for AR-15 owners, so this is an easy way to try it. It is also a convenient way to check function after cleaning or a parts change.

Federal rates AE223 at 3,240 fps with 1,282 ft-lbs of muzzle energy. The 55 grain FMJ boat tail bullet shoots flat and stabilizes in nearly every AR-15 and bolt action twist rate. The boat tail shape reduces drag compared with a flat base, which helps at longer range. A full metal jacket does not expand, so this is a target and practice load rather than a hunting or self defense round.

It fits rifles chambered in 223 Remington and rifles marked 5.56x45mm NATO or 223 Wylde, including AR-15s from Ruger, Smith and Wesson, Colt, and Springfield, the Ruger Mini-14, and bolt guns like the Ruger American Ranch, Savage Axis, Mossberg Patriot, and CZ 600 Alpha. A common question is whether 20 rounds is enough to zero an optic. Usually yes, if the rifle is bore sighted first and you shoot carefully from a rest. Another common question is whether 223 ammo can be fired in a 5.56 rifle. Yes. 223 Remington is safe in 5.56 and 223 Wylde chambers.

Federal AE223 is new production ammunition, not reloads, made in the USA. Cases are reloadable brass with boxer primers, and the load is non-corrosive. This listing ships as one 20 round box, which fills a single standard magazine. When you find your rifle likes it, the same load is available in larger quantities so you can stay on one familiar practice round.