Wow, those are cooking. Just this year I ended up buying three more 327 federal handguns, the king being the 5" blued GP100. What a phenomenal gun, and I used it to take a deer on my first handgun only hunt. I kind of sidelined my SSK copy, as it's just not that great. I found a load of 6 grains of Bluedot provides good accuracy, and I think it was running about 1050 fps from the GP100. I tried to get in on the group buy for the new Mjolnir, but that turned into a joke. I eventually designed my own bullet, a 148 grain solid designed to maximize powder space, and spent the summer testing hollow points. The hollow point I settled on made it a 144 grain bullet cast of 20-1 alloy. You can get it going 1300+ with H110, I never found maximum as accuracy falls off with the soft alloy. Again Bluedot turned out to be the winner, with outstanding accuracy at 7.4 grains. That put the bullet out at 1220 fps from the GP100.
I had a short go with Accurate #9, but it is just not as good as H110. Accurate #7 did not work well at all for me. IMR 4227 seems like a decent powder, accuracy on par with H110, but speed about what I get with Bluedot. I'm still playing with the Accurate 31-120K, it shoots good with most loads, but have not found one I really want to set me teeth into. It seems to shoot best cast of a moderately hard alloy like wheel weights, 20-1 and HTWW were just ok. Being a plain base, it also seems like velocity falls off after a certain point. You can shoot them over 1500 fps easy with most slow powders, but accuracy seems to be best below that.