I'm using 25 Gr. of WW296, behind a 240 Gr. XTP J.H.P. in My .45 L.C. Blackhawk. It's a little stiff, but not extremely, it's a good deer load. I have gone a little stronger than that with WW296 & with H-110, but settled on 26 Gr., cause it worked well.
The only lead I've used were a couple boxes of "Cowboy Loads" I originally bought for the brass, when I bought the Blackhawk.