“My Dillon's ram is huge, but I cannot seem to square the dies enough for small base resizing applications and minimize run-out. 308s SB require more ram force than .223....”
I have small base dies, I have neck sizer dies, I have case forming dies, I never said I did have these dies, I said outside of the forming dies I do not need the dies. I would not choose to use the Dillon Progressive press to size cases for small base and or forming cases. Screwing the die down further as in an additional fraction turn or degree converted to .000” (thousandths) will increase press deviation if the case is whipping the press. I know, the instructions when memorizes etc., etc..