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Old October 20, 2018, 07:42 AM   #14
Senior Member
Join Date: June 18, 2009
Location: Boston
Posts: 486
Originally Posted by Bill DeShivs View Post
Simply change out the trigger return spring with a lighter one.
A good gunsmith can also do an action job to reduce/smooth the trigger pull.
In a S&w double action revolver, the weight of the DA pull is dominated by the main spring, while the weight of the SA pull is dominated by the rebound slide spring.

Going too light on the main spring risks light primer strikes. Going too light on the rebound spring risks failure of trigger reset.

When I encounter a S&W DA with mediocre trigger, the first thing I do is clean the lockwork and then polish the bottom and sides (but not the top) of the rebound slide and also the tunnel in which the rebound slide travels. Often, this is all that is required.
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