This is a actually a followup question to my post on Cleaning a SW 639. After cleaning I noticed the trigger pull was pretty heavy. I understand that SW placed a 22 lb hammer spring in the original gun. I purchased a Wolf spring set and replaced the original with a 16 lb which really smoothed out the trigger pull.
I have seen several discussions about also replacing the trigger return spring to make the action even smoother. I found one article indicating the original was 4 lb.
Just what effect does changing the return spring have? Does this mean the trigger will not return back as far or does it impact the striking of the firing pin or both or something else?
I have seen several discussions about also replacing the trigger return spring to make the action even smoother. I found one article indicating the original was 4 lb.
Just what effect does changing the return spring have? Does this mean the trigger will not return back as far or does it impact the striking of the firing pin or both or something else?
