Two loads to try one is XXXX of IMR 3031 is has worked well for me in both 223 Rem. and 223 AI when fired from a 14 in. contender. Another powder well worth trying especially for your heavier bullets is H335 start around XX grs. and work up from there. Hope this helps. Enjoy Your Shooting Time, Tom ( TGC)
Moderator Edit: Suggested loads well above published maximums removed.
Johnny Guest
TFL Staff
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