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I also use hardwood to make molds. I have started to make long versions of them - 3" to 6" depending on the length of my drill bits I have for the diameter I want to make. Then I have been using a copper pipe cutter (the little one you would use to cut 1/2" or 3/4" pipe) to cut my lead to size. I put the coat hanger back in the hole before I cut so the hole won't crush. For the different diameters of the slugs I make I figure out how many millimeters make a gram so I can cut them and get pretty close to the weight I am looking for. Of course once you commit the pipe cutter to lead you won't want to use it on drinking water copper.
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