If you're talking about the cap screws for the rings, I think 20 inch pounds is the torque spec. (for 8-32's, which I think the Burris is)
For adjusting the clamping force on the QR levers, the rule is to generally have the lever start making contact at about 45 degrees from the closed/locked position. If it seems a little too loose or tight, just adjust it a tad from there.
On my ADM quick release mounts I usually try and cycle them 20 times open/closed as they will loosen up as they break in from the surface friction, so just check them every so often and you might need to tighten them up 1 notch.



























