Thread resurrection, it's a miracle!
I have a newly purchased NOE mould giving me fits. It drops wrinkled bullets at all temps, I've even dropped frosted bullets with wrinkles in the frosted areas. I did the usual heat cycles, then cleaned it with brake cleaner, followed by denatured alcohol. The wrinkles persisted. So I pulled it down and scrubbed the blocks with Bon Ami and hot water, not just one cycle, but three of them. I dried it with heat, then scrubbed the bejezus out of it with denatured alcohol and an new toothbrush. Then I repeated everything again, reassembled it, and got wrinkles again. Out of desperation, I smoked the cavities, and the wrinkles went away, but just until the carbon wore off the cavities. Now it's sittling downstairs, cooling off for another round of cleaning. This has gotten old. I did try a different mould with the same alloy, and it casts fine. I also jacked with the temps, and cast as fast as I could to raise the moulds temperature. No joy there either.
What am I missing?