I have one of the Ruger SA Hunter handguns. It has the .22 LR and the .22 Mag cylinders. I mounted a 2.5X6 scope in the beginning, but then switched to a very compact 1" tube red dot. I have found it to shoot more accurate than any of my other rimfire .22 handguns. The factory open sights are really great if you have young eyes, but mine a way past being young!
I have owned this 'Ruger Hunter' for three years and have really enjoyed it. I did the "Poor Mans Trigger Job" on the handgun and have a creep free and very crisp 2 1/2 lb. trigger. It is one of those must keep,(In my opinion), handguns that come along a few times in life.
Since Ruger put a faster twist rate in this .22 handgun, (1 in 15, like the standard model Goverment Model MK2), it seems to improve overall accuracy.