Cross posted to another site, did a search here but did not find a dupe...
Those of us with a Hornaday trimmer found out/know they have a proprietary shaft size requiring shell holders with a larger hole (Hornaday of course) than other standard shell holders, which are too hard to be drilled. Today I was wondering how to use a Lee shell holder, and did not want to order a Hornaday. Duhhhhh....why hot heat it to draw the temper? Heated the Lee to red with a propane torch, let cool, and drilled it easily. I'm probably the last guy to figure this out, but there may be one other out there.