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I tried some cast bullets in my 94 Big Bore today.  I was disappointed with results.  Accuracy was poor, about 4-5 inches at 50 yards.  There was considerable leading in the bore as well.  I was of the understanding that a bullet 1-2 thousandths over bore diameter was wanted.  My bore slugs .376, best I can tell.  I was using a 250 gr. bevel base bullet sized at .377 with a BHN of 16.  Powder was 30 grains of IMR-3031.  Do I need a slightly larger bullet?  Would a lighter powder charge help?  The load was right out of the RCBS Cast bullet manual.  Any other ideas?  Thanks, Ted
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