This may come across as blasphemy, but I can't reload as good as the Remington Safari Grade 375 H&H with the 300 grain Swift. In both my rifles (Model 70's) no 3 shot group at 100 yards exceeds 1 inch. By the way, when I was fire forming cases for my 375 Ackley Improved, I used this same factory loading, and still got 1 inch groups!