I’ve always thought the 270 Win and the 6.5-06 were the best low recoil high performance chambers. The 6.5mm Rem Mag was ahead of its time and with proper bullets and magazine length would have been a smash hit. Today the only cartridge that would possibly give the 270 Win a run is the 6.5 PRC, which is essentially a 6.5-06. To me those two chambers with 22-inch barrels move bullets at similar speeds and deliver long range performance while being light to carry. Both can be shot with fairly low recoil, the 6.5 PRC at 2.995” COAL would fit real nice in a WSM SA, which is a slight premium in my opinion when putting a rifle on a diet.