My 270's have had 6x36, 2-7x33, and 3-9x40 Leupold's on them. Push to shove, I like the 6x36 with dots. My Kimber MT 270 currently has a 3-9x40 with a CDS.
People that come here to Montana tend to think they need Big-Ole-Hubble-Scopes on their rigs. Really, it's just not so.