I have and like both. If I could keep only one it would be my 7x57.
My 7x57 easily shoots sub-MOA. But my 7x57 is a Remington Classic and my 308 is a Berga and the Classic is more accurate.

Since I only shoot handloads, it’s the 7x57. If I shot only factory loads I’d choose the 308, but I’d like it in a 700 please.

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally