The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the . 223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as . 223 Remington, since this can result in damage to the rifle or injury to the shooter.
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Jul 13, 2022 · The 5.56mm round for AR-15s has been the standard for over 60 years. It was developed in the 1960s as the U.S. Military was looking for a more ...
Jun 6, 2023 · AR-15 Calibers: 7.62x39mm ... Don't worry, you don't need to rub cosmoline on your AR-15 to make it run 7.62x39mm ammo. The infamous 7.62x39mm ...
When most people think of the AR-15, they think of 5.56 NATO ammo or .223 Remington ammo as the default caliber. This used to be true when less than a handful ...
Sep 16, 2019 · AR-15 Calibers and cartridges are legion, finding the right one is a matter of matching it to the job you want your rifle to perform.
Mar 9, 2023 · Most AR-15s are marked for 5.56, which can use either .223 or 5.56. If your rifle is marked for .223, you should always refer to the manual ...
Mar 27, 2018 · These 5 AR-15 cartridges give shooters different ammunition that can suit all of their needs.
Nov 2, 2022 · Matrix Arms outlines the differences in AR-15 calibers. Learn about the different AR-15 bullet sizes here and explore our options!
Apr 15, 2024 · Shown here are some of the best long-range projectiles for use in the AR-15 cartridges discussed in this article. From left: Sierra 77-grain .
Dec 20, 2021 · 223 Remington these days, most are chambered for 5.56 NATO or 223 Wylde and can fire .223 Rem and 5.56 NATO ammo just fine. This is a great do- ...