I have been casting 45's for a couple years, and I'm trying to cast for my 9mm now too. I'm getting wrinkles that I can't stop.
I've cleaned it a couple times, with dawn dish soap and brake cleaner. That didn't fix it. So I thought I wasn't getting the mold hot enough with the smaller cavities. Tonight I cast until I got hot enough for frosting, and still wrinkles!
This is my first NOE mold, if that matters. My 45 mold is a MP, and these are the only two I've cast with.
What am I doing wrong??