I use 175 gr Hornady RN in my 7X57s. Great performer up to and including moose. I use mine in an origninal banner Mauser Model 1935 (98 action) and in a 1924 FN saddle-ring carbine. Both are fantastically accurate. If I scoped either it would prove so at much longer ranges. I use the original irons. Still shoot so much better than my eyes can use the sights. Range shooting is still around an inch 3 or 5 shot. These 175s penetrate and break bone without breaking up. I have put through deer vitals with devestation. I use 4831 or 4350 powder. Velocities are "original" factory ranges.
This cartridge made it's name in hunting history with these heavy long 175 grs. Even RN solids on Elephant!