I bought a pound of Green Dot to try out in .38 Spl, 9mm, .380 ACP, .32 H&R Magnum, and 44 Spl. So far, I've shot about 100 rounds in .38 Spl using 150-gr commercial cast SWC with no crimp groove. I had difficulty finding much reloading data, so I relied on the 2004 Alliant Powder Guide, which I found as a PDF file online.
I shot 75 rounds with 3.5 grains Green Dot from my 1956 4-screw K38. I shot everything at about 10 yards, double action, offhand. They were very accurate, so I'll try them next weekend at 25 yards from a rest to see how accurate they really are. Recoil was light.
I then shot 25 rounds with 3.8 grains Green Dot from my Model 64-3, again at 10 yards, double action, offhand. Like the others, they were very accurate. I'll be shooting them at 25 yards from a rest to see if the accuracy at 10 yards holds. I suspect it will. Of course, it's hard to go wrong with target loads of any powder in a Smith .38.
Next up, 9mm and .380 ACP.