Accuracy seems fine, 2740 FPS for a 300 H&H with a 200 gr bullet sounds a little slow for handloading, but your rifle seems to like them there, so I'd run it. Your load is as fast as the old Western Cartridge Company's load though, for a 200gr.
By my calculations (and I warn you, math was never my strong suit) you will need 19.55 moa come up based on Hornady's ballistics calculator for that bullet at that speed, and elevation of 0 -3000 ft, temp 59 degrees, at 750 yards.
Your bullet drop based on MOA = 1.047" X 750 yards /100 = 7.8525 Taking that number 7.8525 X your come up of 19.55 MOA = bullet drop of 153.5"