I have a Henley & Gibbs six cavity mold. I bought it used and it cast good bullets Then the bullets started to go oversize. I cleaned the mold as best as I can. I can see no obstructions. Holding the mold up to a light I can see that the mold is not closing tight with the exception of the cavity nearest the handles. I checked the pins. Seemed to be OK. The pin nearest the handles was beaten down a bit and a little flat . the other pin is ok. I once bought a mold new with the same condition. I called the mold maker and he said the pins needed to be cut back . Send back the mold. The returned mold worked fine. So now I am thinking this problem is cause by the pins. The bolt that holds the handles is not all that tight. To correct this I need to replace the bolt which is going to be a bitch to remove. Could this be a cause. I need some ideas as to where to look to correct this problem.
thanks
Glenwood