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April 8, 2007, 11:23 PM | #1 |
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Join Date: August 17, 2006
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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?
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April 8, 2007, 11:49 PM | #2 |
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April 8, 2007, 11:50 PM | #3 |
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headspace
The difference is in headspace...only by a little bit though...Its like the dif. between the .223REM and .223NATO rounds
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April 9, 2007, 01:16 AM | #4 |
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April 9, 2007, 06:35 AM | #5 |
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April 9, 2007, 09:24 AM | #6 | |
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Quote:
Yep, but didn't it sound SOOOO authoritative? |
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