I've burned bunches of 8 MM Mag brass for the STW. Also used Rem 300 WBY brass but the necks come up a bit short after firing. You could even use 300 H&H brass in a pinch. 8 Mag should be just fine. After resizing you should trim case lenghts for iniformity.
Nuclear Grade U.B.C. Ret.
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Last edited by olcrip; 04-06-2008 at 01:26 PM.