7/32nds inch drill used but you might take it up to 15/64ths. The dia. of the chamfer is app. .0420". I determined that by slowly pushing a derimmed piece of brass closed end first over the edge until tipped in. Derimmed brass being a bit over 0.710" the heavy end will fall in but the open end will bridge the chamfered hole. I noticed when I first tested, the brass would tip in but hang up on the edge of the 45 degree chamfered hole. In an attempt to increase the angle of the chamfer I used a 19/64ths drilled 0.2" deep so it's kind of a stepped hole from the top. All that **** could be eliminated if you have a countersink with more than a 45 degree angle. I would suggest the hole be 1" deep so maybe use a 1/2" piece on the bottom and 3/4" on the top. It was all trial and error, that's why i had to pull the handle so many times. You know us backyard tinkerers, "well the 13/64ths works but maybe if'n I drilled 'em out to 7/32nds it'd work better". Add another 105 pulls of the handle to the count. Before I make another one I'm going to find a sheet of whatever with holes perforated into it to use as a hole guide. The heck with drawing all them lines. Hope this rather obscure explanation helps. The project was just an effort to kill an afternoon whilst I await my last two dies from BT SNIPER (hint, hint Brian).
Lafaun- Your lead wire die works great. It's a snap on my WH press.
Supe