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Cooper M21 20 Tac Excessive Jump
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06-30-2015, 11:14 PM
Don-T
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Join Date: Aug 2010
Location: Butler, PA
Posts: 75
Coal
FWIW, the leade in my Cooper .20 TAC is the same as your friend's. My comparator shows 1.900" base to ogive with 32 Vmax. However with 26.1gr of Exterminator, it actually shoots in the 2's if I haven't had too much coffee.
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