Harold, afwiw but I've made hundreds of 20 Mink cases from WW 22 Hornet brass and 17 HH brass. What still works the best for me is the Redding Imperial Sizing Die Wax. TK was selling a Resize Case Lube called Accuracy Case & Neck Lube. It was pretty good, but I ended back up with the Redding Imperial Wax product. I've never had problem with shoulder dents using it sparingly. 410gauge
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