I have been reloading for over 50 years and one thing I have learned is to never set up a sizer without trying them in the chamber of the firearm in which they will be used.
Sometimes it works out but I have been burned enough that I don't do it any longer. It also keeps you from over working your brass. YMMV.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor