I’ve always thought the 270 WCF as a multi purpose, quasi magnum chamber. It gets very impressive velocities that are close to magnum speeds from all available bullet weights. It does so with a 22-inch barrel as well. As a mountain rifle you could shorten a barrel to 20” with 130, 140, 150 or 160 grain loads with 1-10 twist and still keep up easily or surpass the 6.5 Creedmoor, 7-08 Rem and 308 WCF utilizing 24” barrels. If custom set up in a 6lbs+- rifle you’d be hard pressed to find anything better as an alpine or plains rifle.
