For my cast bullets, I use Unique, Universal, and 2400. I only use the Universal for plinking, because I don't reallly like it, but am too cheap to throw it away, and It DO make the gun go off with a frightening bang! And it will provide lots of reloads per can at 5.2-6 gr. per cartridge. Lots of guys like it ,tho.
Leading? There is a stainless product that looks like lathe shavings made specially for lead removal that a local IPSC shooter turned me onto, and also the pure COPPER Chore Boy pot scrubbers you can buy at the supermarket will do the job just fine. Wrap a few strands around a cleaning brush, and Voila! Cheap and easy.
I also have the Lewis Lead remover, which works, but is a big pain to use.
Leading? Where? Chamber end of the barrel...may be too hard a bullet, and/or lube problem.
Using my own cast bullets, and a red NRA lube for IPSC matches, I had no leading, but when I switched to commercial hard-cast bullets, I started getting leading at the forcing cone. (Revolver. I'm a dinosaur!
) I think a combination of the alloy, which wouldn't upset and fill the chamber/barrel, letting gas leak past the bullet, melting it a little, and POOR lube. I relubed some bullets, just to see if that would make a difference. To the range today with my son-in-law, so we shall see. I hope this may help a little. Good luck.
Back from the range. Lyman recommended loads of Blue Dot (my last, loaded bofore the warning) and 162gr. cast, and commercial 158gr. cast bullets left no leading. Neither did 10.8 gr. 2400 with 158 gr. cast semis. The 2400 left unburned granules in the cases...I am going to up the charge, because 2400 likes to operate at higher pressures. Maybe that will take care of it. The re-lube seems to have worked!