...
2. Anneal cases for 20 minutes at 900 F in a Lyman 20 lb lead pot.
...
19. Melt cores into jackets.
...
Wow - very impressive! Definitely a labour of love.
When you anneal the cases, are you using the Lyman pot as an oven, and it takes ~20 minutes to transfer the heat evenly into a batch of cases? Or, are you floating the cases in a lead bath?
I've recently been annealing case mouths in a salt bath heated by Lee 10 lb pot with PID controller set to 932° F. Using a salt bath in your Lyman pot might reduce your anneal time and improve temperature consistency.
The salt bath could also be useful when melting the lead into the jackets by standing up filled jackets into the hot bath, and removing once the core melts into the jacket.
Thanks for sharing - looking forward to shooting results and weight consistency stats.
-Steve