Did you actually screw in the screws and find the trigger was STILL over to the side?
These stocks are inletted in such a way that you can actually rotate the action quite a bit before the screws are installed.
The recoil lug does NOT touch the stock on the sides or the bottom.
It only seats against the rear face.
What I do when installing an action into one of these stocks with normal BDL bottom metal is to un-latch the baseplate of the bottom metal, flip the barreled action upside down on the bench, install the mzine box, lower the stock on to the barreled action (just like in your picture above), and visually center the trigger in the inletting.
THEN I set the bottom metal into the inletting, checking for proper fit of the magazine box into the bottom metal before I install the action screws.