My first center fire rifle was a Ruger 77 chambered in .270 Win. I grew up in the 50's and 60's reading JOC and OL.
Currently have a pre 64; a 5 digit Classic and a Forbes and have shot most of my big game and a fair number of varmints with the two Winchesters.
All of mine so far have been factory rifles but am thinking about a faster twist .270 to shoot the longer/heavier new bullets since I can not get either the Berger 170 EOL or the 150 Nosler Long Range Accubond to chamber in my Classic. Did get the 170 grain Berger EOL to chamber in the Forbes but not the Accubond. Never had a problem with bullets up to 160 grain before. Shot a MT antelope with the Classic this fall and expect to shoot a MT elk later this year with it.