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The die and the ram do not need to make contact but it has to be very close. If you are denting shoulders on cases back off the lube especially if it is the glycerin type or back off the die from the ram. Another way to prevent denting is take a look at the shell holder. How tall is it above the groove that locks in the case? If you have very little height above the groove you might get dented cases. Look around and find a taller shell holder.

Or, drop a thin washer on top of the shell holder when their is a case locked in. Check for dents. Some dies are tighter than others and may crush shoulders. Tailgunner has his method. The idea is to resizes cases without crushing the shoulder. Then check for fit in your rifle. It's not rocket science but you may have to experiment a little. kwg
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