
I have been stalking them for some time now, and I have not yet been able to pull the trigger. The lightest Ruger Scout is the 16" barrel with polymer stock at about 6 pounds, comparable to the options below.
If you want light, primarily, also check out the Ruger Hawkeye Compact or Hawkeye Compact Laminate or the Remington 700 Mountain Rifles.
I have a 700 Mountain Rifle and an older Ruger Hawkeye All-Weather (don't think they make them anymore) that both weigh in at about 7.5 pounds with scope. I wouldn't trade either for a heavier rifle for blacktail woods beating.