Bought a Python 2 days ago, great condition w/ the box, etc. Checked the action & dry fired a few times @ gun shop & everything seemed in order (this is my second Python). Took it home, cleaned it up and I'm happy w/ it. Yesterday, while inspecting the gun further, I realized it didn't sound like my other Python when dry fired, had a louder ringing sound. When I tried S.A. dry fireing a few more times the hammer would only drop part of the way. It continued to do this several times and then it would be OK, then start again. In D.A. dry fire it doesn't have this problem. I haven't had the chance to talk to the gun shop owner who sold it. He said it was an early 70's E prefix model. Any thoughts on what problem may be would be appreciated.