I was casting a run of 515139 bullets from my old Ideal/Lyman mould in preparation for my carbine event at the N-SSA Spring Nationals. I got most of the way through my run and noticed the sprue plate was getting loose and floppy, so I loosened the set screw and tightened the sprue holding screw a bit, but apparently I neglected to cinch down the set screw sufficiently because in a very short time the plate was loose and floppy and then I noticed the set screw had apparently backed out and completely disappeared.
My younger brother runs the fastener department at the local Home Depot, so I stopped by in hopes of finding a replacement and he measured it as closely as he could get as an 8-32. Unfortunately, that wouldn't quite work. Hence my post... did Lyman do something weird like make an 8-30 set screw, or has my mould block gotten damaged from the old set screw wobbling out or...?
Any helpful thoughts would be appreciated.
Froggie