I have a couple of .38 wadcutter molds that drop bullets at .360.
I would like to load them as-cast, but can’t find an expander that works.
I’ve tried an NOE .358/.362 expander. The only way I could get bullets to seat without damage (and not even 100% of the time was to run the plug deep enough for the case mouth to just kiss the second step to flare it a tiny bit . Then cases started sticking, badly. Spoke with NOE and they said send it back. I had one from BACO that was worse, I broke a new case off trying to pull it free from the expander ball. On examination, it looked like the plug had some runout. That one went back for a refund.
So far the best results have come from sizing the bullets to .359 and using an RCBS Cowboy expander. But I’d really like to use them as-cast. Sizing thousands of wadcutters is nit my idea of fun.