Sir Spruce, Enaa baasee' for the reply. So you are living through some very interesting times, eh. Confucius say "Man who builds his own house is never bored, just boarding whenever and wherever he wants." How far are you from Fairbanks ? I usually think of Fairbanks as the center of AK extremes. What date was that -72*F ? I'll try to avoid that date for my next vacation road trip in AK.
That AM 46-485N is nice, catalog comment at Accurate Molds say it was designed for .458 WinMag. Order a two-cavity, 2.35" block, your choice of brass, aluminum or ferrous. LEE 6-cavity mould handles fit, might have to do some fitting of the screw holes with variable RCBS mould handle holes.
Alloy I recommend is simple: Lawrence Brand Magnum Shot size 7-1/2, 10 pounds of it, plus a half-pound of 50:50 (tin:lead) solder. Snip the solder into little pieces (an inch or two long) and mix well with the shot as you dribble them both into the melting pot. That is BHN25 alloy aka 92:5:2:1 (Pb:Sb:Sn:As). Water drop them and they are ready to go. Hornady .45-cal gas check. Eastwood Ford Light Blue powder coat paint is prettiest, IMHO. Might soften from 25 to 21 BHN with the annealing caused by PC painting at 400*F for a half hour. But they will age back to BHN 25 after 4 weeks and stay there. Or use grease if you must, but make it bear grease heh-heh-heh. Size with a .460" LEE or CH4D base-pusher bullet-sizing die, and they will be 0.461" after springback.
Ron aka "Rip" for Riflecrank Internationale Permanente NRA Life Benefactor and Beneficiary .458 Winchester Magnum, Magnanimous in Victory THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.
