My .300 Weatherby shoots Barnes 168 and 180 grain TSX and TTSX bullets well. My go to hunting bullet in this rifle is the 168 grain TTSX. I haven't been ably to get Berger bullets to shoot well in MY rifle.

In fifty years of successful deer, elk, antelope, goat, and sheep hunting in Colorado, Wyoming, Montana, and Canada, I've never found the need to take a 800 yard shot, but to each his own.