4dogs:
Just so you know, revolver barrels do NOT just "drop in".
Changing a revolver barrel is a MAJOR gunsmithing job, and it requires special tools to do it without ruining the gun.
Among other tools you need a special frame wrench with hard plastic inserts that will fit THAT specific model of Ruger. Not a Colt, not a S&W, and not some other model of Ruger either.
Try to remove the barrel with the old "hammer handle through the frame" trick and you WILL crack, bend, or break the frame.
AFTER you get the barrel off, the new barrel requires extensive fitting and adjusting, and among other tools, this requires a lathe to cut the barrel shoulder so the front sight is aligned.
In short, revolver barrels are not just pieces of threaded pipe you can screw on and have fit.
If you send the gun in to Ruger, they will re-barrel your gun for a decent price, and do it RIGHT.
While it's there, they'll check it out and fix anything else that's wrong, usually for FREE.
Do it without the right tools, and you can kiss it goodbye.