Hi, in the past I have pissed and moaned about the very heavy hammer and trigger pull of my Pietta Paterson. Forget any good accuracy with a trigger pull as heavy as a New York State Trooper's Glock. With the arrival of a replacement Paterson hammer mainspring, I reduced the width of that spring to reduce the mainspring force. Initially a bench grinder was used, but I soon found that I could do a better job with a hand held dremel tool with a sanding ring. This is a comparison between the original spring and the modified spring:
The original spring is on the left.
Hammer pull is now very nice and the trigger pull went from over 8lbs with the original spring to ~5lb with the modified spring. The functioning of the revolver is now a lot smoother.
It will now be necessary to shoot the revolver to see if hammer blow back will occur. I have seen reports where Paterson hammer blow back will begin to rotate the cylinder, not a good thing. If hammer blow back does occur with the reduced force spring, I may try length sizing the SliXShot nipples and using them to minimize hammer blow back.
Regards,
Richard