I am glad that you are getting good results, but the vel. seems to be a little low. IMR 4320 is almost too fast in burn time for the 06' auto, would be OK in a bolt, but these Auto's as you know are picky, come back up the latter a bit too, Reloader 15 and VARGET. Both these should prove excellent in your 742/30-06/w/180 Nosler's, you should get 2600 to 2700 FPS. Are you using Small Base Dies when reloading? This in my opinion is a must for REM and BAR auto's, to prevent case hang up.
IMR 4895/ was the powder that was used in WW2 in M1 GARAND 30-06, of course, it was called something else until released to public in the 50's, then the military switched to IMR 4064 because it burned cleaner in GARAND. Today alot of target shooters of M14/M1 use VARGET.
Hope this helps, I enjoy reloading and fine the 742 is a different breed than the bolts I have.