Not questioning what you did, as I said I had bought the Lee mold, and I have the Lyman 450 lube / sizer, I never checked the as cast diameter of the dropped bullets with my alloy mix, I knew they needed to be sized to .452 for my Black hawk.
The Lyman mold I replaced the Lee with works fine, same (alloy mix) Lyman mold has larger deeper grooves, the Lees Lube grooves were just to small for the 450 after sizeing.
Now you have me wondering what the Lee was Dropping Bullets at. wish I would have checked them before I sold the mold.