Second time casting, first time with this mold. I started the session with an aluminum Lee 452 swc. Good bullets, no issues. I switched over to the Lyman and after warmed and about 12 good bullets, the mold was hard to open and or close. Then it would not fully close. I didn’t see any obstructions. Not sure what was happening. It’s like the pin is too tight. It’s all cool and I can force it closed now, but it’s tight.
Can you tell me how this happened? What should I do?
Thank you,
David