Thanks to User 4barrel for suggesting in this post:
http://smith-wessonforum.com/140973978-post28.html that I might be able to fix a mold I warped. He thought I could heat it back up, clamp it together and let it cool and maybe that would correct the warp
I warped the mold by dumping alcohol into the cavities, thinking it was sufficiently cool. It was not and it then cast bullets with wings. I could see daylight through the closed mold. Thanks to 2020, Lee molds are sold out everywhere.
So, I heated the lead pot up to 850F and let the mold float in the molten lead for about 3 minutes. I had 2 scraps of wood positioned in my bench vise, ready to receive the hot mold (I did not want to clamp the hot mold directly to the 25 degree vise).
Once I was ready, I stood the mold straight up between the wood and tightened it down. I continued clamping it while the wood compressed and burned away until it cooled enough that I had good pressure on the mold. I left it for about an hour.
Well, it worked. I can no longer see light through the closed mold. It remains to be seen how it casts now but ... you CAN unwarp a mold!
My thanks to 4barrel for saving the day!
ETA: cell phone pics in poor light, but you get the idea...