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30AR--What is it?

2338 Views 13 Replies 9 Participants Last post by  broom_jm
I see this caliber listed in the Redding die section of Midway's catalog. Is it, like the 7mm TCU, a necked up .223 or something else? It seems like I've seen 30TCU mentioned before so maybe the 30AR is different.
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Remington introduced it around mid 2008 for AR platform type rifles...bout all I know about it.

This should answer a few questions:

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