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yes, except 556 is written as 5.56 caliber (223)

Actually, no, it isn't. Although the dimensions match, the military 5.56 cartridge differs from the civilian .223 in several aspects, such as the neck angle, casing thickness, and chamber pressure.

A general rule of thumb is that .223 Remington can be fired in a 5.56 chamber, but 5.56 ammo should not be fired in a dedicated .223 chamber.

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Q: Is 223 Remington the same as 556mm?
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Related questions

Are 223 and 556 the same?

Dimensionally similar, but they are not exactly the same. A firearm with a 5.56x45 chamber can accommodate the .223 Remington cartridge, but a firearm with a .223 Remington chamber cannot accommodate the 5.56x45 cartridge.


What is the difference between 223 ammo and 556MM ammo?

While they are similar, the cartridges are not the same, with slight differences in the shoulder angle, length of neck. It is safe to fire .223 in a weapon chambered for 5.56, but 5.56 ammo in a weapon chambered for .223 may NOT be safe.


What caliber is 223?

"The .223 Remington is a sporting cartridge with almost the same external dimensions as the 5.56x45mm NATO military cartridge."In short, 223 IS the caliber- .223 inches


Are 223 and 5.56 interchangeable?

A rifle with a 5.56x45 chamber can utilise .223 Remington cartridges. A rifle with a dedicated .223 Remington chamber cannot accommodate 5.56x45 cartridges. A rifle with a .223 Wylde chamber can accommodate .223 Wylde, .223 Remington, and 5.56x45, but neither a rifle with a 5.56x45 or a .223 Remington chamber can accommodate the .223 Wylde cartridge.


Can you use 556 in a 223 rifle?

.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.


Can you shoot a Remington 222 in a Remington 223 rifle?

No.


5.56x45mm round is equal to which round?

Very similar to, but not exactly the same as .223 Remington.


Is 223 ammo the same as 5.56mm ammo?

No. Dimension-wise, they are similar, but there are differences in neck angles and case thickness. .223 Remington ammo can be fired in a 5.56 chamber, but 5.56 ammo should never be fired through a .223 Remington chamber.


What do you need to form 6x45 Remington ammo?

223 Remington.


223 Remington in mm?

5,56


What is the lowest caliber rifle over the 22?

In terms of power, or diameter? A .22 has a bullet diameter of .223 inches, the same as the .223 Remington and 5.56 military cartridge. The .222 Remington actually has a bullet diameter of .224 inches.


Are 22 rifles good for hunting coyotes?

Not the rimfires (.22 Short, .22 Long, .22 Long Rifle, .22 Magnum), but centrefire cartridges in the same calibre range (.22-250, .222 Remington, .223 Remington Magnum, .223 Remington, etc.) can be sufficient for coyote.