Those look like fun. I've got a 155gr Cast bullet mold that I love for my 45 ACP target loads.
I'm having a hard time finding a bullet that light in .451 or .452 cal in QuickLOAD if you can provide the following measurements I can get something modeled.
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Also, these look like lead bullets. I just want to confirm they are lead and not moly coated jacketed bullets.