The only one you mention that I can speak of with experience is the Winchester Mod. 70 Classic Stainless. I've yet to see one that didn't shoot as good as, or better than custom 375s. Mine would shoot Remington Safari Grade Ammo with the 300 grain Swift A-Frames under 3/4 of an inch at 100 yards every time. It was so accurate that I customized it and made it into a 375 Ackley Improved. It's the most accurate rifle I own.