Originally Posted By: AKA YuppiehunterSorry fellas, I had no idea this was such a repetitive subject on the forum. I have one Ar 15 that says ".223 only" and this new AR that says 5.56/.223. My question was mainly on the accuracy issue if any, but I'm learning that either round in either gun will out shoot me, right? Iam asking because I don't want 20 AR magazines loaded for specific rifles. I want all my magazines to be universal and it sounds like the 5.56 and .223 are in fact identical.
Either rifle will shoot either cartridge, so mix and match - and don't listen to the "Chicken littles" that tell you that the sky is falling.
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