This somewhat defeats the purpose of using a progressive but will produce less runout.īest advice is just to experiment to find out what yields the best results. Some folks size there brass on a single stage press then complete the process on the Dillon. For my 223 I just use the standard Dillon Die set and it works fine and found that XBR 8208 meters consistently. I was experiencing too much charge variation and switched to a Hornady case activated powder measure which improved the situation. Run a number of number of pieces of brass through the charging station with the powder you plan on using to check throw consistently. Also installed a competition seating die. For my 308 loads, I switched to a Redding Type S die without the expander which seemed to significantly reduced the runout. I was using Dillon dies and isolated the runout problem to the expander. They did reduce runout somewhat but the biggest culprit was the expander ball being dragged through the neck after it was sized. I have Whidden tool heads for my 223 and 308 gas gun loads.
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