I haven't made 219 DW for over 40 years. At that time I used cut-down sizing dies. I found I needed to create the final shoulder location with the first 30 cal shortened die. The progression was 30>27>6mm>22, with the last 3 forming only the neck and bumping the shoulder location to meet the neck.
I had no success moving the shoulder back with a smaller than 30 die.
Bruce
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