One other piece of advice that I will offer is to use blue loctite on the nut that attaches the Ruger rings to the frame of the SRH. Mine kept coming loose until I applied a drop of loctite to each ring...problem solved.
That may or may not be good advise, as sometimes that blue Loctite on small screws will take a lot of heat to break loose if you ever have a need to take it off.
I recommend and use purple Loctite on those small screws and have never had one shoot loose and they will break loose with just a little more torque than normal with whatever hand tool you're using.
