Mine is a .44 Magnum Bisley. It is good for 4" groups at 50 yards, which apparently is not very good compared to most of the reviews I have read. I am forced to use lead-free bullets where I hunt, so have not done much load development with the few bullets available. The trigger is typical Ruger in that it is a little heavy and a little creepy. With one leg of the trigger spring removed from the post it is acceptable enough that I have never gotten around to having a proper trigger job done.
I have it fitted with a Leupold 4x scope, which is a mistake. Vignetting is a significant problem. I keep meaning to replace it with a 2x but it's pretty far down my list - I really don't hunt very much. I may put a dot on it instead, as I have several that aren't doing anything at the moment. I do, though, like the added weight of the scope, as it makes the recoil very manageable.
The short version is that if I was in the market for a relatively inexpensive yet high-quality hunting revolver to be used with optics, I would buy a Bisley Hunter in .45 Colt. I wish that caliber had been available when I bought mine.
.17 Ruger Hunter with 4x Leupold LER . I've had it about 7 years, one of the first ones , I had to have it! It's great on Ground squirells to 125 yards , which is as good as I can hold. I killed a small coyote at 60 yards no problem but lost an equally well hit one at 80 yards that was bigger. I don't use it as a ranch gun since then. 
