Within the last 6 months, I've tried W231, Titegroup, Win Supertarget (WST), Win SuperField (WSF), Ramshot Zip, and Hodgdon's Clays. All with .45 200 gr cast SWC. The Titegroup is the lowest cost per 100 rounds. The Clays isn't far behind. So far, I am sticking with Clays. Burns clean, is accurate, smooth recoil, and I still have about 10 lbs left to use.