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The article I refer to was by Mike Venturino. The article I'm referring to, talked about custom dies being made to shove the fireformed shoulder back to pre-fire formed position thus increasing the neck tension.

I'm just relating what was noted in his article. I do not agree with shoving the shoulder back at all, but rather going with a slightly undersized neck expander and a good crimp of course, possibly taper then roll.

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