
If it is listed as 5.56x45mm NATO or it says. The easiest way to know if your AR 15 can handle either one is to check the barrel. Even though a standard AR 15 can shoot both rounds, your weapon may not be rated to handle 5.56x45mm NATO, as the extra pressure can damage the barrel. 223 Remington round is the civilian version. A 5.56x45mm NATO round is the military load, which means it has more powder and is loaded to a higher pressure. While the bullets and cartridges for 223 and 556 ammo are the same size, they function differently. This answer is a little more complicated.

223 Remington and 5.56x45mm NATO the same round? The only thing that some people confuse is by calling all cartridges “bullets,” as the bullet is only the projectile at the end of the cartridge. A cartridge consists of the bullet casing, the primer, gunpowder, and bullet. While some people think ammo cartridges and rounds are different, they actually two terms for the same thing. What is the difference between a cartridge and a round? Don’t forget to check out our reloading equipment if you need gear and accessories to reload your own cartridges!īelow are some answers to common questions our customers have about our ammo. We also carry some of the most popular calibers on the market, including 9mm ammo, 45 ACP, 6.5 Creedmoor, 22 Long Rifle Ammunition, 12-gauge buckshot, and so much more.

We carry all types of ammo and bullets to assist with your shooting needs, such as FMJ bullets for target shooting, and hollow point bullets for self-defense. Buy bulk ammo to get the most bang for your buck! Whether you’re looking for rimfire ammo, shotgun ammo, handgun ammo, or centerfire rifle ammunition, we have everything you need to gear up. Finding the right rounds for your firearm has never been easier or more affordable. Shop top-rated brands like Winchester, Hornady, Sig Sauer, and PMC Ammunition. Our wide selection of ammunition is sure to have you hitting your target with record speed and precision. High-quality ammo is a must-have for all hunters, shooters, and marksmen.
