Charles Daly/Zastava mini-mauser, 527, Sako L461 top to bottom
While the 527's action is a bit shorter, what kills it weight wise are the solid steel rings, trigger guard/mag well, mag, and ,most importantly, lack of light weight stock options. If there were a Banser or Edge available things might be different.
I have a buddy that has a 527FS. He chopped off most of the stock, swiss cheesed the mag well, and lightened some other things. It's still heavier than my "light" baby Sako I didn't put in the picture.
To put that into perspective, neither are nearly as light as a factory Kimber Montana and the Montana doesn't limit you to a 2.28" COAL like all the others.