Are 5.56 And 223 Interchangeable

Jun 22, 2012 · The .223 Rem and 5.56 NATO max pressures of 55,000 and 62,000psi, respectively, do not mean that you will actually get ammunition loaded at that pressure. .223 tends to be loaded lighter and 5.56 tends to be loaded hotter – but there are exceptions to these general rules.

.223 vs. 5.56 mm Ammo – a Comparison Many firearms novices, and even seasoned shooters, are unsure of the difference between .223 and 5.56 mm ammo. Many incorrectly assume that they are interchangeable, but they are, in fact, not interchangeable. Here are a just a few of the similarities and.

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Feb 02, 2012 · Today, the difference can be marked. The leade on a proper 5.56 chamber is twice or more than that of a .223 chamber, and the onset angle of the 5.56 rifling creates a ramp with four times the distance. Firing .223 in a .223 chamber, or a 5.56 chamber, is not a problem. But firing real-deal 5.56 ammo in a .223 chamber can be a big problem.


A 223 Remington is loaded to approximately 55,000 psi. The second and most important difference between the two is the fact that a 5.56 NATO chamber has a .125” longer throat. This allows approximately one more grain of powder to be loaded into a 5.56 NATO cartridge; this is what gives it higher performance than its 223 Remington cousin.

Are 223 and 5.56 interchangeable? 1 2 3. Answer. Top Answer. Wiki User. 2012-01-08 06:10:37 2012-01-08 06:10:37. A rifle with a 5.56×45 chamber can utilise .223 Remington cartridges. A rifle with.

Aug 23, 2020 · The comparison between .223 and 5.56 isn’t a new one, so there is a lot of discussion to weed through to learn about the two. Ultimately, because they originated from the same cartridge, they are very similar, but that does not mean that they are necessarily interchangeable.

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Jan 24, 2013 · The quick answer is maybe. Just because a gun has .223/5.56 scribed on the barrel does not mean it can handle either type of ammunition equally.223 vs. 5.56 NATO: Cartridges. The .223 Remington is a sporting cartridge with the same external dimensions as the 5.56x45mm NATO military cartridge. It is loaded with a .224-inch diameter jacketed.

Umm. There are no 5.56 or .223 magazines. Magazines are categorized per firearm, not cartridge. You are talking about the caliber of cartridge when you say 5.56 and .223, not the weapon.

Jul 20, 2020 · By contrast, .223 Remington tends to produce lower chamber pressures between 52,000 and 55,000 psi, going by SAAMI specs. Therefore, 5.56mm NATO ammo isn’t safe for use in a rifle chambered for .223 Remington, but .223 is OK in 5.56. Thus, powder charge is the main difference between 5.56 vs .223 cartridges. Wait.

6.8 Rem Spc American Eagle 6.8 Rem SPC 115 Grain FMJ 20 Rounds [AE68A] View Out. 6.8mm Remington SPC. Fed Ammo ae 6.8 spc 115 Grain fmj 20 Rounds [AE68A] View Out. 6.8mm. Guns & Loads – 6.8 Remington SPC The 6.8 Remington could just as easily have been called the .270 Remington Short, because that’s what it