I just purchased a Winchester Model 70 375 H&H Magnum it is a beautiful rifle and is a pleasure to shoot so far. My question is what is the best all around bullet weight to use and sight in with, I will be using it for moose, elk and black bear here in Alberta and am planning a trip to South Africa or Namibia in 2015. For the foreseeable future I will not be using it for dangerous game. I am thinking of going with 300 grain bullets but there seems to be lots of 270 grain bullets on the market. Generally shots are between 75-250 yards, also as I have no experience with this caliber what is the best range to zero it for?