I have a stainless Ruger Redhawk with a 7 1/2" barrel that I bought new maybe 30 years ago. Bought it and a Leupold 4x scope to use for deer hunting. And that's about all I have used it for over all of these years, along with some minor target shooting when preparing for our pistol deer season. I had it out a few days ago and shot up some low pressure target ammunition I had loaded many years ago, and some more recently. (All 310 grain cast projectiles over 12 grains of W-571) In one cylinder full I fired 2 shots, and then the hammer came back real easy and the gun would not fire anymore. Like the hammer spring had broken. I can work it manually by pushing the trigger forward and pulling back the hammer like to fire it, and the hammer comes back real easy, but when pulling the trigger nothing happens. So, what is wrong with it and is it fixable? I have not tried to dismantle it yet, and I think I have the book for it somewhere?