OK, made it to the range today (Friday 9th) got good results with Lee 200 grain SWC bullet (bumped up to .432 dia.) with HP. Used 5.0 grains of Trail Boss that moves 820 fps velocity.
Though one of my bigger Lyman mould's was #429244 GC, I also bumped those bullets up to .432 diameter in my swaging die.
Bottom of target 1.5 inch group...top not quite as good same load.
All in all, this proved that bullet beagling works by increasing moulds to cast .432 diameter. The bigger bullets girth chambers better in my Taurus oversized cylinder throats.
White paper target was a surprise that needs a little more fine tunning with the heavy bullets #429244 slugs 262 to 265 RNFP did pretty good, but should have held a six o'clock hold on my POA.
But Trail Boss looking better as loads develop.
Jim