When i still had the 7mm-08AI barrel on my Stevens 200 with factory 22" barrel, i tested many powders.
With 140gr bullets, Ballistic Tips, Berger VLD-H, and the Hornady 139gr SST, the following have been my results.
RL17 for highest velocities, and decent accuracy. But had a little higher ES/SD than i wanted for long range.
RL16 gave decent velocity and accuracy. But it's bulky. High compressed loads. And i didn't care for the recoil impulse it gave.
Varget gave good accuracy, but low velocities.
Same with RL15.
H414, and Win 760 (same powder) gave both decent velocities and good accuracy. I wouldn't hesitate to use for a hunting load.
Ditto H4350, but a touch faster than H414 by only about 20fps.
Ramshot Big Game is supposed to give excelldent velocities, but hard to find in my area so without a steady supply i never tried it.
Where does that leave us?
With my top powder pick.
Alliant Power Pro 2000MR.
Velocities that match H414, H4350 but with excellent accuracy.
ES-6 fps
SD-2 fps
That over 10 round string.