New Ruger Flattop Bisley 44 Special
New LBT .431" 250 WFN 4-cavity mold.
New RCBS .431" sizer die
Swagging pure lead balls through the bore (.430") and then the throats (.431"). When I cast straight clip on WW, then size them with the .431" sizer, they come out .430". I'll shoot them this way first but if the accuracy suffers and if I need a .431" bullet, neither RCBS nor Lyman make a .432" sizer. I figure I need to lap out the sizer die to .432". What's you favorite way to accomplish that?
Thanks,
Alan