I always thought "mold" was proprietary to this particular forum, just like "boolit". I tend to use "mold" and "boolit" when posting on this forum and "mould" and "bullet" for the rest of the world. I hadn't realized Lee used "mold" to describe their product until reading this thread. Went and looked and -- sure enough, they do that. I know some folks would say "well -- yeah!" but I am actually a Lee fan. Or at least of their 6-cavity model.
Always learning something hanging around here!