Years ago I ordered a Rem 40x in 223 with 1/14 twist barrel and they furnished two test target 5 shot groups with the rifle. The targets I got had the two 5 shoot groups were in the mid .2's using 26gr/IMR4895 with 52 gr Berger bullet and that the same load they used in the 222mag.
Over the years I've good luck with H-335, N133,suplus IMR-8208,Scot 3032,Tac plus H-4895.
Last edited by old roper; June 26, 2011 at 04:36 PM.
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