Before you go tapping on the star, you need to know exactly what is happening with your Model 2. First determine what is not working correctly when the hammer is cocked?

Check the cylinder stop and see if it is fully dropping through the slot in the top of the frame? Debris, damage, broken spring, alignment/binding, can all affect how this part functions. Second, try to determine if each or any of the stop slots on the cylinder are working to properly lock the cylinder without assistance. Third, determine if the cylinder goes far enough to align with the slots or passes over them and goes too far?

To do this try the following. With your finger pushing down on the stop, cock the gun and let us know if any chambers lock into battery. Second, pull the hammer back fully and tell us how many of the stop locations need an extra turning of the cylinder to lock? Use a small punch the push the hand back into the recoil shield and see if is sticks or snaps back out into position? Lastly, push the cylinder forward and back and check to see how much it moves? If there is too much play in the cylinder, the hand can bind as it tries to push the cylinder into position.

With all that information, we will have a better idea of what needs to be done to get the gun cycling properly.

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Gary
SWCA 2515