Expander Die Set Up

Thread the die body all the way down until the die mouth touches the shell holder. Tighten the die body lock ring. Place the case in the shell holder and begin turning the expander stem until the mouth of the case is expanded about 0.012 larger for plated/jackets bullets and about 0.001 larger for cast bullets. For powder-thru dies on progressive machines the die body adjustment controls case mouth expansion. Too little expansion will cause the case to shave the base of the bullet. Too much and the case mouth becomes over worked. For additional information you can ask your questions concerning the expander die in this forum. Highboy
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