I've had 4 MLs. For each one I started at 70 grains and worked up in increments of 10 gr until the groups started to open up. This has always been 100 or 110 grains for me. So, in the guns I currently have, I shoot 100 grains.

IMO, for hunting you should shoot a stout load. You never feel the recoil anyway. I want the best (flattest) trajectory I can get, with accuracy, in the field. It is easy to under estimate the distance to the deer or whatever you are hunting. Every bit helps.

Target shooting is a different deal altogether.