To clarify me post above, my Model 7 is sub 7 pounds without a scope and unloaded. The total weight is loaded and scope mounted. I like the balance between portability and shootability at around those weights (those t3 lites are in there - those are nice rifles).
When I talked about the super light rifles, I was talking about rifles like New Ultra Light Arms and the above referenced Kimber. It is tough to keep your heartbeat from making the crosshairs move on those little rifles. Recoil is higher on lighter rifles but proper shooting technique should take care of it.