Replacing some springs in a 64-5

[psychephylax]

I have a 64-5 I bought at a pretty good price but I did not like the trigger pull on it.

I wound up ordering a Wilson Combat Custom-Tune Spring Kit S&W K, L, N-Frame from Midway and put in the hammer spring and the lightest trigger return spring. I began having light primer strikes on my reloads. I went up in weight on the trigger return spring and still have light primer strikes. Put in the heaviest Wilson Combat trigger return spring and I'm still having light primer strikes.

is the preferred method to keep the stock hammer spring and adjust the trigger return spring weight? I'm kind of disappointed in the results.

I'm not really interested in switching to Federal Primers (I'm using CCI/Winchester/Magtech/Remington) now....

 

[john traveler]

As you discovered, messing with the main (hammer) spring can result in misfires. It's best to stay with the factory mainspring, and make sure that the main spring tension screw is full-length and tightened all the way down. It's best to use Locktite to secure it.

The rebound spring has NOTHING to do with how hard the primers are struck. It will, however, have much to do with the weight of trigger pull in DA. Make it too light, and you will get failure of trigger to recover, skipped chambers, or both. Reliability suffers if you go too light.

A proper action smoothing job would involve polishing of the rebound slide sides, and removal of burrs and machinine marks that increase roughness of trigger pull. Simply replacing springs does little to reduce DA pull weight and does nothing to increase smoothness.