totally new to casting - Recently got the mihec HG68 clone 6 cavity aluminum mold from the group buy.
Only issue is one cavity is really "sticky" I can't get a bullet to fall out of there for the love of anything. I've got a piece of wood to tap the handle with, but that one pesky one literally won't drop a bullet until i actually push the pullet itself. I don't want to go whacking away on the mold itself.
I've smoked the mold to the point where it's blacker than my AR but to no avail.
What are good next steps. I was thinking taking it apart and scrubbing the cavity with a toothbrush or something. but I don't want to make things worse. For now I've just been skipping that cavity when I fill it.