In my 7-08, one of the most accurate loads is the 140 SGK HPBT over 42.5 Varget. That bullet seems a bit more expansive than NBT's. I use it to chest shoot WT's and it puts'em down with authority, good exits, internal damage is impressive. I didn't get a chance to chrono, guessing around 2,800 or so from a 23" barrel.

DF