Interesting point there Rule303 - I could never tell the difference between any projectile weight in 8mm Mauser or 30/06 while others could. Even from 220gn to 350gn in the 375H&H I can't feel a difference. However, I can tell the difference between 400gn and 500gn in my 458WM - I'm not fond of firing too many 500gns off the bench.