Unfortunately, there�s no exact load like that for the 7x57, since chamber throat lengths vary so much. But H4350 works very well. Start with 40 grains, no matter the bullet weight, then work up until you get about the following velocity with these bullet weights:
140�2800
160�2650
175�2500
Unless the barrel on your rifle is under 20�, you should be able to reach those velocities safely, and accuracy will usually be good.
