I've had two. Both lemons. Neither gun would have left the factory if there had been any sort of commitment to quality assurance.
The first was one of the early grey series. The factory had assembled it with the front sight at a 7 degree angle to the vertical. The reason why the grey finish was discontinued was that they couldn't be worked on without damaging the finish. After 18 months the Ruger agent replaced the gun.
The replacement looked ok to the untrained eye. However I found it wouldn't shoot cast accurately. Further examination by a qualified smith showed numerous manufacturing faults including cylinder throats measuring between .4535 to .4555, cylinder chambers oversized, barrel groove diamater approx .453 but inconsistent, machining chatter marks in the bore near muzzle, flah gap around 9 thou, cylinder not square to either frame or barrel etc, cylinder throats out of alignment with barrel forcing cone.
From discussions on the internet, the issue of the oversized cylinder throats is fairly common with the Ruger SRH. So much so that there is speculation that Ruger have done it deliberatly to reduce pressures. Not sure if I believe that but certainly possible.
I've since bought a BFR. The build quality is in an entirely diferent universe to the Ruger, as is accuracy. With the tight BFR tolerences, I found I'm getting approx an extra 200 fps for the same loads as against the SRH despite the BFR having a shorter barrel