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Thread: any Ar15/M4 fans siting around.
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03-02-2011, 11:30 PM #24
5.56 is actually a little bigger. You can notice when you groups go to heck with just switching from 5.56 round to .223 in a 5.56 barrel. The bullet will actually wobble on a very small scale. I've only seen this with my uncle's 5.56 but they say it common on some of the gun forums.
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Devilpup