My experience with the 7X57 is somewhat limited, although I have used one in the past to kill a few deer with, a Model 70. I used IMR 4350, a load recommended by Jim Carmichael, that was max as far as I was concerned. If I remember correctly, it chronographed at about 2850 with a 140 grain bullet. It was a good deer killer. My son used a 7X57 that I'd put together on a 98 Mauser action, and I loaded for it with a little less powder, same 140 grain bullet. It was a deer killer as well.
