Has anyone had success with IMR4350 and 120gr 7-08?
The various 4350s burn too slowly to get top velocities before you run out of room in the case. It's better to reserve your 4350 for heavier bullets like the 140 or 160 gr. I think you should stick with Re-15 or Varget; I've also had good performance from IMR4320.
If you can't find a good load with the 120 NBT (you will, however), try the Barnes 120 TTSX or even the Speer 130 gr BTSP, a bullet that I've used more in the '08 than even the 120s.