I went to the range. Shot the 5 rounds already loaded in my revolver. Extracted the shells, reloaded and then the gun would not cock and rotate the cylinder. I was able to "help" the cylinder turn with my left hand, while cocking the hammer back. Each shot afterwards, same behavior. Fired 10 rounds and called it a day. Took the gun home, cleaned it, same behavior. I am not a gunsmith, but I can follow a video well enough to disassemble the pistol. I will attempt to repair tonight. I am leaning towards an issue with the hammer spring. Any insight on this?