Buano hit it pretty well, my input is quite similar:
1- Tune or replace trigger (if it's the x-mark, replace it)
2- PROPERLY bed the action (yes it can be done wrong)
3- free float the bbl (should be done in conjunction w/step 2)
4- Examine the crown recut if necessary.
These steps will get you to the factory "improved" performance level, next would be action blueprinting & lug lapping etc. I don't usually recommend folks go that far w/ a factory bbl as it is still a crap shoot whether or not it will shoot. You are taking the bbl off to do it any, might as well screw on a better tube while you're at it.
I have experienced a huge accy problem with a 7mm in the SPS configuration, those factory stocks are inadequate at very best (in my opinion). Shooting from a bipod actually shown a 2" change in POI from different loading of the bipod.... when you can grab the bipod with one hand, grab the action area with the other and actually make the stock flex... wow...
Just another .002