I have owned more than a few for quite some time and I find that they are quite forgiving re torque. The mid action and rear action screws are bushed so they tighten down to a stop point, so that gets snugged down good. I would say about 50 in lbs.
The front bbl/forearm screw I like to set firm with the slot indexed front to rear - I would guess about 35 in lbs or so.
I find as long as everything is snug it is better than trying to find some "loose" fit for the forearm screw.
I believe they were designed to be snug up front and I do not understand why some I have purchased have that forearm screw missing. I replace it as soon as I can find or make a replacement.
Wonderful, wonderful rifles that are accurate without messing with them.