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AZGunLover · April 8, 2007, 11:23 PM

What is the difference? I've shot both in my AR and thought they were the same thing with a different name? I've shot surplus 5.56 and .223 Remington. Someone today told me that they were two different cartridges that were only slightly different? Am I just ignorant or is it really two different cartridges?

April 8, 2007, 11:23 PM	#1
AZGunLover Senior Member Join Date: August 17, 2006 Location: AZ Posts: 281	5.56x45mm and .223 Remington???? What is the difference? I've shot both in my AR and thought they were the same thing with a different name? I've shot surplus 5.56 and .223 Remington. Someone today told me that they were two different cartridges that were only slightly different? Am I just ignorant or is it really two different cartridges?