I have recently acquired my first semi-auto rimfire, an S&W22 Victory, which has an internal hammer. When the last round in a magazine is fired the bolt remains locked open. Upon releasing the bolt to store the gun, the hammer is cocked. Pulling the trigger will release the hammer. But the instructions say to never dry-fire the pistol. Question: Is there another way to release the hammer besides dry-firing? Or should I just leave the hammer cocked??