I adjusted my .308 EW soon after getting it a year and a half ago. You have to carefully scrape the epoxy used by the factory to retain the screw, then loosen (counter clockwise). I don't know about removing the screw, but why would you want to? Mine took about one full turn to get it like I like it. I just put a dab of epoxy back on the screw head and have been good to go ever since. I think you're gonna like your rifle.
Thanks for the reply. I do like the rifle and liked the trigger until I shot it at the range the other day alongside a couple of my other rifles.
The reason I asked about the weight adjustment screw is because, in the owners manual, it says in bold: "Notice! The trigger pull weight screw will fall out when the trigger has been adjusted to its minimum pull weight of 3 pounds."
Before I do the job I need to find another torque wrench as the lowest setting on mine is 10 foot pounds.