2 extra tips that I am pretty sure I picked up from MontDoug and GLWentzl from some thread or another on this site:
Using expander mandrels to go up to 25 cal before necking down gives a nearly fully formed case before fireforming, and chamfering every step saves on the belling of the case mouth. Thanks guys.
Drew
On right, using expander mandrels, on the left formed "normally"
