Winchester 5.56 and Winchester 223 Ammo is One of the Best Brands for America's Favorite Rifle! — 4 products / 16 models — Page 1

Shop online for 223/556 Ammo from Winchester to stockpile or stock up on target practice rounds, 223 Winchester hunting ammo, or prep your home-defense kit with Winchester 5.56 ammo. Make sure you never run out of ammunition again by checking our frequently-updated 556 Ammo in Stock Now page.

Does Winchester make 5.56 ammo?

Yes, Winchester Rifle Ammo is available in both 223 Winchester and Winchester 5.56 ammo. They're available in all kinds of types for match shooting, hunting, home and self-defense, and bulk rounds for those long days of mag dumps at the range.

Is .223 and 5.56 ammo the same?

No, not exactly. While .223 and 5.56 ammo have similar qualities, they are completely different cartridges. 5.56 ammo has a slightly longer case and more pressure than a 223 Remington round, so it's important to understand the difference.

Is Winchester 223 ammo good?

Winchester Ammunition has been produced since 1866 and is recognized as a leader in the industry. Winchester 223 ammo is no exception. It's trusted by professional match competitors, hunters, police, and militaries all over the world to perform to the highest standards, shot after shot. These Winchester 223 / 5.56 Ammo Reviews by Verified Customers speak for themselves: 223 Winchester ammo is good stuff!

Can you use .223 and 5.56 in the same gun?

Yes, but only if your gun is chambered for 5.56x45mm NATO, aka 5.56 NATO, or just plain old 5.56. The most important thing to note is that you should NEVER shoot 5.56 ammo with a gun chambered in 223 due to a pressure difference and slight differences in the cartridge size. You can, however, shoot 223 rounds with a 5.56 caliber, but the performance will be suboptimal. The difference will be mostly in accuracy, and that will be at longer ranges. If you're just looking to have fun doing mag dumps at the range, you're probably not going to notice a difference when you're running .223 Rem. ammo through a 5.56mm. Always be sure to check the manufacturer's specifications before firing any ammunition through any firearm.

Buy Winchester 223 / 5.56 Ammo from OpticsPlanet!

Shop at OpticsPlanet for Winchester 223 / 5.56 Ammo today, and check on our In-Stock Ammo page to see what's ready to ship today! Browse our Rifle Ammo Guides to learn more, and if you ever have questions please feel free to reach out and contact our Product Experts!

Click here for answers to Ammo Buying Frequently Asked Questions, and for more information check out our State of the Ammunition Industry page.