Today I received my very first Boolit mold. It is a Lee 356-102-1R and the excitement is building! Right now I have it in a cup of mineral spirits to degrease and then I have some other metal cleaner that was made for electrical contacts and such.
Now somewhere I remember reading about heat treating these molds before using them but I cannot find the thread. So if anyone can point me in the right direction I would appreciate it.