Piper-
You make a good point there...
I am that machinist friend you speak of, unfortunately I'm recovering from knee surgery and 'tooling about' in the machine shop is borderline torture right now.
I actually made it out to my machine shop behind the house early this afternoon and gathered some gear and noted I have 5/16"R ball end mills and 5/8"Dia hard ball in stock.
Thought of this one myself, and I might actually end up out there some time this weekend if this knee starts feeling a whole lot better right away.
Until then I'm still looking for .620" (or very slightly larger) diameter lead roundball.
I'd very much prefer to just buy twenty (or so) ball than buy or build a set of mould blocks and cast them, as this is evaluation time here.
Thanks for thinking on it, and for your comment.
--Tinker
