Originally Posted by
Semisane
After a bit of Googling and considering my options, I ended up ordering a .580 push through sizing die from Lodgewood Mfg. Col (
http://www.lodgewood.com/Push-Thru-S...Die_p_491.html). It will certainly be better than anything I could fabricate, and isn't much more expensive than the drill bit I would need to buy for a do-it-yourself attempt.
Expect a range report in a few weeks.
I was thinking the same thing. But I also know how much you like to tinker. After all, anyone that designs and builds a ML receiver is above the average tinkerer!