INGWE: To answer your question
it goes like this,and is just my opinion,but if we look back,we see some things are perceived as needing "improving", so they get improved......and some are not.....so they don't.
For some reason, the 7mm's have been played with every which way,and the 270 Win,while remaining enormously popular,has been given scant attention when it comes to improvements.The only exceptions being the 270 Weatherby,and the 270 WSM,both of which make their presence known in the markets,but have only a fraction of the popularity of the 270 Win......so,
I can only conclude from this, that the 270 Win has done just fine all these years,has needed no embellishment,improving, etc,and I think Winchester got it "right" the first time.Just not much to improve upon
