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69 Grains work in both twists just fine...
http://www.wideners.com/itemdetail.c...ir=278|281|727
The "Accuracy Load" in Sierra's book has the H-335 powder listed for 63 grain bullets
http://accurateshooter.net/Downloads/sierra223ar.pdf
Never used H-335 others have said midrange weights for usage. With the fast twists
the 60-63 might be the best bullet weights.
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Last edited by A_Gamehog; December 8, 2009 at 12:14 PM.
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