One of my first centerfire rifles was a .270, and it was lousy. It was a Rem ington 721 with a very poorly designed stock and a scope with no where near enough eye relief. I haven't looked in a while but for most of the last 50 years, I had a crescent between my eye brows where the scope bit me repeatedly. My father said I was crawling the stock and he attributed the poor accuracy to my lack of style. So we went shooting and while I couldn't laugh, my dad got scope bite, too. So I sold the rifle off and swore never to buy another.
The problem with the cartridge is that its marketed as a mountain rifle for hiking uphill and carrying it along. Most guns in the caliber are too light and tend to recoil a bit too much.
Then comes the issue of me refusing to add another caliber to my stable. I already have a gun or two that cover the same ground. From a 300 magnum down to a very nice 7mm maggie. If I see another gun in my current calibers, I consider it. If its a .270, I don't. If the new rifle
Winchester is trying to pander were a .30-06, I'd be considering it seriously. Winchester picked the caliber, and they picked one I'm not interested in buying. And if it were a .30-06, it'd better be a great one because I have 2 m70s in that caliber, first year production guns. If I stumbled upon a .300 H&H from the prewar, I'd be drooling. But I'd be gracious and step aside, letting you guys buy the .270s. I don't want them.