When loaded with heavy 200-220 gr bullets the 300 will perform just as well if not better than the 338 mags. on larger game. There have been several tests documenting this from gun writers, and guides in both Africa and Alaska. The 338's, work, just not any better on really large game.
The 300's advantage is versatility. When loaded with lighter bullets it has much less recoil and flat trajectory for deer sized game. Loaded with heavier bullets it will match any of the 338's or 35's on larger game at closer ranges. The next real step up in performance over the 300's are the 375's
The 300's advantage is versatility. When loaded with lighter bullets it has much less recoil and flat trajectory for deer sized game. Loaded with heavier bullets it will match any of the 338's or 35's on larger game at closer ranges. The next real step up in performance over the 300's are the 375's