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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.

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Q: What is the difference between 223 ammo and 556MM ammo?
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Related questions

Is 223 Remington the same as 556mm?

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.


What ammo con be shot from a 223?

Only .223 ammo. There are different bullet weights.


Does 5.56 ammo fit 223 bolt action rifles?

No. If it does not have 5.56 on the barrel then use .223 ammo.


Informationwhat caliber gun handles 223 ammo?

>.223


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 is the difference between .223 cal and 5.56 mm?

The 5.56 cartridge has a different neck angle from the .223 Remington, generates higher chamber pressures, and has different weight projectiles available. .223 Remington can be safely cycled through a rifle with a 5.56 chamber, but it is not recommended to use 5.56 ammo in a rifle with a .223 chamber.


Can you Shoot 5.56 Ammo Out of your 223 Model 1500 S and W Rifle?

yes. the 5.56 is the 223 caliber ammo.


Can 223 ammo be shot in a 223 WSSM rifle?

NO the .223 is a totaly diffrent round than the .223 WSSM


Is 223 ammo used as a sniper?

No


Can 5.56 x 45 and 223 ammo be interchanged?

.223 Remington ammo can be safely cycled through a 5.56x45 chamber - 5.56x45 ammo should not be cycled through a .223 Remington chamber. Both types may be cycled through a .223 Wylde chamber, but .223 Wylde may only be cycled through a .223 Wylde chamber.


Can rossi 223 shoot 5.56 with out problems?

you can fire both 5.56 and .223 ammo in a rifle chambered in 5.56...but not the other way around! In a rifle marked .223, you should fire .223 ammo only


How far will 223 ammo be accurate?

The max range for .223 is about 300 yards.