$425-$450 retail
An internet search engine, with the make and model of your pistol will bring up a whole slew of folks, eager to sell you gun leather.
I just bought a Ruger p97 "used", but has never been fired, so it is still basically new. I got it for 425 after taxes and other little prices. For a used one i would like to pay 400 or less, depending on aesthetics of the gun and how much use is in it. IMPROVING ANSWER: From a stocking gun dealer with a store and overhead, $400 is about right. But if you buy one from a private individual, person-to-person sale, I think $300 is more like it. Ruger pistols have a good reputation for reliability but they are thick, heavy, and ugly.
There is no such Ruger.
No such weapon in the Ruger line
Unknown caliber. Contact Ruger
it is worth ..............$$$$
Storm ruger 44 magnum 10 inch barrel What is it worth
400
100-300
50-400 usd
100-400 USD