Well,(to cover caliber bases above), I have a .243 700 that it took me 30years to get to shoot under 2.5 MOA. Never really liked that caliber, so never really warped it in (only rifle I have had that DEMANDED just the right amount of forend pressure point- all the rest shoot best with free-float) but I've killed a bunch of stuff with it, including my first dall sheep at 20 yards, second at 100, caribou, black bear and a moose. Nothing over 200 yards, and 2.5MOA is plenty good enough for that! I've never used anything on game except 100 gr., which it likes best. Got her down to MOA now. Tempermental bitch.
Then I rebarreled a 725 from rust in .244 with a .260 700TI SS takeoff.. I really like that gun. It doesn't shoot anything under about 3 inches, except 140 gr. Any 140 gr. MOA . I can live with that. Do need to fix that extractor tho. It took two bull caribou as a single shot this fall on successive days, but waiting for the brass to cool and be shaken out is a PITA.....
. Said replacement has been sitting in the cabinet for a year now.....I'll get to it.... I was looking for a 7-08 barrel when the .260 barrel came up. Still have never had a 7-08!
I did just buy a lightly used Mod 70 FW in 7X57. Have yet to shoot it, but will before I start the mods. Need a baseline, after all, but that barrel channel definately needs work - pressure points all over the place- and very rough. Most likely an epoxy rebed (and pillar bed?) also - what is in there is just basically a skim coat not to be trusted. Poorly sealed too. A bit of trigger work and I expect it to shoot well. With somehing.
Could be why it was practically a steal! But I've always wanted a 70FW.
I don't expect any real difference in field performance between those three rifles, given proper bullet placement. The .243 proved adequate on a 3 year old bull moose, and the .260 on a cow elk. The 7mm is a proven killer caliber from waaaaaay back. My '06's and .338WM don't do it any better, but no worse either.
i gave up selling off guns several decades ago.