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Cooper M21 20 Tac Excessive Jump
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06-12-2015, 03:52 PM
TinMan
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Join Date: Sep 2006
Posts: 2,800
Back in 2011, someone on the board here posted the factory loads for Coopers. Might have been Rob. Those records show for a 20 Tactical, 25.0gr of H332 with a 33gr VMAX. No indication of primer or OAL. Hope this helps.
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