Well Rev, a 150 will give total penetration on elk when started out at 2700 fps. I have 160 and 175 grains but, haven't noticed any more accuracy with them and the added penetration is moot unless shooting length wise.
Shew me thy ways, O LORD: teach me thy paths. "there are few better cartridges on Earth than the 7 x 57mm Mauser" "the .30 Springfield is light, accurate, penetrating, and has surprising stopping power"