I have a Sako 75 in 270 win and it has been great. Mine is the standard model, non fluted barrel. It can feel heavy after a long day but not intolerable. When I purchased it I also purchased several brands and weights of ammo. Out of the box it shot 3/4" groups using 130 gr vital shock w/ balistic tips. Good enough for me. Nothing shot over 1 1/4 groups. I have never had any problem with the Sako what so ever.
I purchased this gun because I got tired of getting knocked senseless from my 300 rum model 700. I still have the 300 and often think of selling it.
I would advise anyone thinking of one of the magnum calibers to really think about it. Ammo is expensive and hard to find. I have had a bullet explode on impact on a close range shot on a moose. I found that as time went on I began to develop a flinch that still haunts me.
My thinking has changed from "use enough gun" to use just enough gun for a clean kill.
Dave