If you have a tap for the threading, maybe you can screw it into a sacrificial holder and work it off the gun. Just make a little removable or not orientation mark that won't get ground off, and maybe save just a little fine tuning for on the gun. Relatively, that's a fair bit of reduction and you may want better access if you're trying to hold a bead shape by hand. Good luck with it.
I thought about that craig, but decided it would take too much figgering to get the bead to tighten up at the same orientation in the holder as in the rib. I'd rather take my time and carefully shape it in place. I have no doubt I can do it. I'm a screwball............I actually enjoy tedious filing and shaping.
SRH
