Convert the RCBS Uniflow or RCBS Black Powder Measure for use on most four or five-station progressive presses. Three powder bushings are included for most popular rifle and pistol calibers: Small rifle for .22-.270, large rifle for 7mm through 45 calibers and pistol for .32 through .45 calibers. The powder bushings are designed to eliminate powder spillage around the case mouth. Fully adjustable for all of the different variations in case length.
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