I recently purchased a Remington 700 in the 7mm Mag caliber. The rifle was made in the Remington Custom Shop in 1994 and it came with all of the original documentation and had not been fired.
I have been on the look out for a 7X57 but could not find what I was looking for. After receiving the rifle, I looked to see what information was available for "reduced" loads for the 7mm Mag. In my search, I found that Hornady offers what they call their Custom Lite ammo in 7mm Mag as well as several other calibers. I have purchased a box of the Custom Lite and can have 7X57 performance in my new to me 7mm mag.
Thought I would share this with members of the forum.