Make sure you slug your bores. If you're in the sweet spot and throats are accomodating, by all means get the commercial mold. If you have to, because of unusually large throats, go custom (and who wouldn't given that the extra couple of bucks spread out over years is meaningless and you get exactly what you want) then I can highly recommend Accurate molds. His 43-220 with tumble lube grooves in brass makes bullets so smooth and concentric I made a couple in to earings for my wife. Thet sparkle right out of the blocks
