http://i301.photobucket.com/albums/n...Chiappa/17.jpg

This is the gun partially opened: the trigger mechanism has started to move - remember it is attached to the air cylinder - and the sear is being dragged past the front face of the hammer. See how rough the face of the hammer is here.

http://i301.photobucket.com/albums/n...Chiappa/16.jpg

This is now open enough to cock the hammer (and still open, hence the position of the trigger). The bottom edge of the sear has engaged with the hammer. On the front face of the hammer you can see the rough, laminated construction as it disappears into the frame and a glint closer to the sear - just below what might be called the full cock notch.

The question is - is this just wear or would this be brought to a sharp corner in the interest of a good trigger pull?

Iain