Moose are not deer. Moose are more than twice the size and five times the mass. There is no downside to choosing a proper 180-200 gr. bullet in a .300 Weatherby for moose. There is a distinct possibility of a 150 grain bullet failing to penetrate enough. Don't use a deer bullet for hunting moose.
Actually they are deer. So are elk. We may not call them deer, but really they are the largest of the deer family. But I agree in using a bullet with a high SD.
