Around 48.5 grains of H4350 will push a 139/140 2875fps+ and give you 1/2" accuracy from a 22". Extremely temp stable and POI consistent.
I've burned over a dozen different powders in 7mm08, and H4350 is perfect with 130-145s. I do use a drop funnel, as loads will be compressed.
Nothing wrong with your bullet selection, but I'm of the opinion it is not needed at 7mm08 velocities (based on my on game experience).
Big game, IMR4350, IMR4451, IMR4064, RL17, and RL16 would be good second choices. All are 1/2" accurate, some not as fast and some not as temp stable.