I have a blank 7/8'' die. A mill and lathe. I need a core die for a .22 spent case setup I bought. So I'm thinking .1875 roughly maybe somewhat larger as the derimmed cases are .203. So where to start. Drill hole size followed by a reamer of which size. And how many steps to the final reamer size. Next I assume is to polish it. How and with what. Any help on the how's and what greatly appreciated. I have a Corbins S press.
Thanks