Jim the 7X57 is my all time favorite caliber and at one time I had five rifles so chambered now I'm down to three
My two favorites are the Pre 64 M70 carbine and a custom rifle I had marked as a 275 Rigby just to be different and that I had it built along the lines of a 1930's era Rigby stalking rifle.
I had a nice M71 deluxe a great rifle that I shot very little. I bought it cheap and it went into a multi gun trade for a Purdey 16ga two barrel set.