Casting Lee .459-405HB, out of Roto 20-1, ladle poured, at 800* in RCBS Pro-Melt 2. It took me a little practice to get going, but started turning out some really nice-looking bullets. I was pleased with their appearance and stopped at 50 for the session.
Checked the diameter at consistent .462, and Low and Behold, when I weighed them they were remarkably consistent, about 40 of them are within +/- 0.2 grains...from 377.8!
I didn’t really expect them to be 405 grains on the dot , but What in the Sam Hill?