Just fyi: The forming die I used was from C H Tool and Die in Ohio.  Good folks.  Had it in stock. Don't know if the others with an easier time got a die somewhere else?  Maybe my particular chamber?  But chambers done poorly are usually oversized.  How do you undersize a chamber?  I don't know who chambered my rifle but I have since rechambered but still using brass from my original 500 Starline 357 Max conversions mentioned above.   If you size/form that far down on a case, essentially the web, as I did you need your wheaties.  You may not need to.  IDK.  My old chamber the brass was sticky after a few firings. PITA  New chambering no problems and I have lost count of how many firings.  Long story short, I believe with any wildcat chambering and many of our beloved single shots in general your mileage may vary.  If or when I need to make more brass I have since gained access to a H frame hydraulic press.  10 ton I believe which is overkill but breaking my Forster twice and then watching that Redding Big Boss strain, no thanks ....but then again with a different 32 ms chamber I may not need to size so far down the case.  Just my experience take it for what it is worth.  Just don't break a press.
mike

as an aside:  I am currently forming 32 rks from 360 DW and it is like melting butter compared to my 32 ms endeavor.  I like that

Wish I had a little mini lathe, it would make this task so much easier.

"[color=#ff0000] I use my lathe with a forester trimmer shaft, cutter and pilot in chuck. Lyman case holder for drill in tail stock. Push by hand tail stock in to cut. Use the cross slide as a stop for tail stock" 

Bnice, I used this method tonight, slick! The means of holding the case works well.
GT