It looks like you can get 1200 or so fps out of a 180 grain boolit with a few powders.
There's a load for Blue Dot, AA #9, AA #7 and even a 1100 fps load using Unique...
My plan is to test with Blue Dot and AA #9. But does anyone like a particular powder?
The boolit I want to use is this one (Accurate 40-180H with no lube grove):
I'm also shooting it in a Ruger GP 100, so the gun is strong and will handle heavy loads...