There's not room enough in the case to match velocities with slightly faster-burning powders. Hodgdon's data does list loads with H1000 and 200s and 220s for the .30-06, but the top velocities with 200s are in the 2500 fps--at around 42,000 CUP, because no more powder would fit. Even 220s only get the old factory-load velocity of 2400.
