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The Range
Gunsmithing & Repairs
30 Remington AR upper.
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<blockquote data-quote="SPDguns" data-source="post: 3621131" data-attributes="member: 17621"><p>From WIKI: The rim size is.492" and because the round generates 55,000 psi, Remington opted to use a .308 rifle bolt in a 5.56 sized rifle for increased case support.<a href="https://en.wikipedia.org/wiki/.30_Remington_AR#cite_note-Woodard2016-4" target="_blank">[4]</a> With a 150 grain bullet, the round travels at 2575 fps.<a href="https://en.wikipedia.org/wiki/.30_Remington_AR#cite_note-Zwoll2012-5" target="_blank">[5]</a></p></blockquote><p></p>
[QUOTE="SPDguns, post: 3621131, member: 17621"] From WIKI: The rim size is.492" and because the round generates 55,000 psi, Remington opted to use a .308 rifle bolt in a 5.56 sized rifle for increased case support.[URL='https://en.wikipedia.org/wiki/.30_Remington_AR#cite_note-Woodard2016-4'][4][/URL] With a 150 grain bullet, the round travels at 2575 fps.[URL='https://en.wikipedia.org/wiki/.30_Remington_AR#cite_note-Zwoll2012-5'][5][/URL] [/QUOTE]
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30 Remington AR upper.
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