I don't mind casting boolits vs. purchasing them. Iron moulds are my favorite but lately the 6-cavity Lee moulds really increase yield in a short order. I hate beating on mould blocks especially aluminum ones. Have discovered a product made by the company that produces PB Blaster. They make a spray graphite. PB Graphite. Wow! Does it work on both iron and aluminum blocks. Cleaning a mould with thinner to remove the oil greatly reduces wrinkle boolits. But once the mould is clean a quick spray either on a hot or cold mould makes the newly poured bullet fall out. Sometimes a light tap with a hardwood stick will encourage a freshly cast boolit to bail out of the cavity. Also a quick spray on the sprue plate makes the fresh sprue fall off. When running my Magma Master Caster the boolits fall out of the mould much faster. The guy that traded me the Master Caster handed me a can of Zep Spray Graphite. But it is an industrial product and not as readly available as the PB Graphite. The ZEP Graphite spray works good too. Thought I would share my experience with casting lead boolits. Enclosed is a photo of the PB Graphite I bought in a hardware store.