I shoot a lot of USPSA competition with .45 acp, .38 super, and .40 S&W, bullet costs for practice is pretty expensive. I cast 200 gr. semi-wadcutters for my .45 and load with Winchester 235 for a very accurate, low-recoi round. Someone will no doubt say the Winchester powder is a little dirty but I have had good luck with it and like it so I really don't care what your expert opinion is. Everybody has their go-to formulas, this is mine that I got to by trial and error. I use a mixture of linotype, tire weights and 50/50 solder; the linotype, I recovered from a print shop that was destroyed during Kartina. I got nearly a ton of it. I get the tire weights in 20 gallon barrels from a local tire shop that saves them for me and I bring them fishing weights and bullets once in a while. The Solder comes from a friend that does heating and air conditioning repair, usually traded for diving weights that I cast from salvaged lead boat keels. I like the 6 cavity Lee molds for pistol rounds and keep a couple in each caliber and bullet type so that I can alternate them while pouring. Melting lead has its dangers, even a little moisture or dirty tire weight dropped into a pot of molten lead will create quite a steam explosion and more than likely burn the hell out of you. You can safely feed the pot by slowly lowering individual pieces though, letting them melt as you lower them into the pot. For those that don't know, steel floats on lead. The little steel clips float right to the top, I keep a bucket of water beside me to spoon out the debris and get rid of. I use bee's wax or paraffin wax as a flux. This will bring a scum of ash and other debris to the top so you can rake it to the side and spoon it out. I recommend warming your molds beside the pot as you melt your stock. A warm mold will release better and it insures the mold is dry so you don't get a steam explosion while casting. It is also a good idea to have a towel to soften the drop of hot bullets when released from the mold. I like to swing the spue plate and drop the buttons back into the pot, as soon as the last button solidifies but before it cools to harden. Cast bullets need to be sized and lubed before using, you will be amazed at the diameter variances that can occur, either fro a film of lead accumulating on the inside surfaces of the mold, or heat expansion.