As others have already said, the T3 is the one.
And this is from a bloke who absolutely loves his Sako 75, but I’ve been incredibly lucky to find a McMillan stock for mine which transformed it.
The parallel rail on a T3 is far superior to the tapered dovetail on older Sakos.
A T3 in a PSE stock, with a Spuhr one piece hunting mount is a hell of a tool and leaves little to be desired.