RE: How are Sierra bullets
I wouldn't hesitate to use a 165 or 180 ProHunter out of the Saum. I've found the PH to be a bit tougher than the GameKing . . . .but I don't think the difference would be even worth noting if deer sized critters are your quary.
I will say the Sierra's have been one of the most accurate bullets in many of my rigs...
Brett