Sounds like the same problem I had with a 454, SRH a few years ago. After calling , I shipped it back to them. According to the return invoice ... they replaced the cylinder and various internal parts ... it worked fine. Its unfortunate , but every now and again a bad one slips through. If this is your first RUGER , don't let this dishearten you. Over all , Rugers are very good firearms. Oh , and when you call , they may or may not offer a prepaid shipping label ... if this gun is in fact "new" , I'd ask for one. They will take care of you. Good luck
regards , irold