Every 7x57 I have owned has loved the Sierra 140gr pro hunter flatbase soft point with as much imr4831 I could get in the case.
Haven't tried it with lighter bullets, but either 154 -160's I've pretty much come to the conclusion that you can't get too much H4831 (non-SC) into the case. Stopped where I did because recoil was "enough" (I'm getting to be a wimp in my old age).
The same is not true of Big Game.