Can't find it in my loading notes, but did find a maximum load of 20.5 4198 with the 55 Hornady. (Hodgdon lists 20.4 as max with the 55 Speer, but I decided to risk another .1 grain.). It got around 3150 from a 26" barrel and 3075 from a 22".
One handy thing about single-based powders is changing the charge weight also changes the velocity at the same rate. Which is why I suggested 12.5 grains: The math says it would get about 1900, give or take a little, based on 3100 fps for 20.5.
