Woo Hoo! I hadn't read this thread when I put down the .270 as the most UNDERATED.. Good to be a contrarian. My entry for overated would be the 7mm Rem Mag. In the mid to late '70s, it seemed like everybody who was shooting power lines or pastures had to have one, generally with a Bushnell or Weaver scope screwed to a '70s era Remington that was likely doing well to shoot 2 MOA, and hit within an inch of a .270 at 300. But they were shooting LONG RANGE, dontcha know. Good times.