Last year I bought myself a M&P340 and my wife who is proficient with her Gen2 Glock 17 really liked shooting my new little Smith when I last took her shooting. So for Christmas, I got her a surprise S&W 642.
I wanted to break them in a bit before doing any tweaking on the triggers so we did a lot of dry firing and a couple of trips to the woods. I have no issue with the trigger pull on my black 340 but it certainly did need to have its insides smoothed. Slow-cycling, I could feel some rough spots especially right before the hammer released.
My wife loves her new 642 has no problem with the long-pull DAO or recoil with +P. The slow-cycling on her 642 was smoother than my 340, but I wanted the pull on her trigger to be a little lighter without risking failed ignition..
So last night, I opened, stripped, cleaned and stoned both revolvers and replaced the stock trigger rebound spring on my wife's with a 13lb Wolf. I did not change the hammer springs on either gun and I left the rebound spring on mine alone.
And then of course, the inevitable (for me) happened. A spring launched away. During reassembly of the hammer and sear on mine, the itty bitty sear spring popped out. I couldn't believe it. It is the gun's smallest spring. It was so small, I didn't hear it and had no idea where it went. I crawled around for 15 minutes with a magnet and flashlight with no luck.
I almost resigned myself to having to order a new one but as a last ditch effort, I hooked up the central vac, cut off the toe end of my wife's pantyhose, put the homemade filter pouch in between the handle and the floor nozzle. My shop needed vacuuming anyway. Happy ending is that I found that little thin spring after carefully sifting through the pile of dirt I picked up.
So I learned a new skill, both revolvers got their internal contact parts and edges polished and the results on both are excellent. During careful, deliberate slow-motion cycling, there are no rough points anywhere and at the end of the cycle, the hammers release like they are tuned single action. Feels smooth like glass on glass.
Some pictures below...
His and hers:
The 642 before:
My 340 stripped:
My 340 smoothed:
I wanted to break them in a bit before doing any tweaking on the triggers so we did a lot of dry firing and a couple of trips to the woods. I have no issue with the trigger pull on my black 340 but it certainly did need to have its insides smoothed. Slow-cycling, I could feel some rough spots especially right before the hammer released.
My wife loves her new 642 has no problem with the long-pull DAO or recoil with +P. The slow-cycling on her 642 was smoother than my 340, but I wanted the pull on her trigger to be a little lighter without risking failed ignition..
So last night, I opened, stripped, cleaned and stoned both revolvers and replaced the stock trigger rebound spring on my wife's with a 13lb Wolf. I did not change the hammer springs on either gun and I left the rebound spring on mine alone.
And then of course, the inevitable (for me) happened. A spring launched away. During reassembly of the hammer and sear on mine, the itty bitty sear spring popped out. I couldn't believe it. It is the gun's smallest spring. It was so small, I didn't hear it and had no idea where it went. I crawled around for 15 minutes with a magnet and flashlight with no luck.
I almost resigned myself to having to order a new one but as a last ditch effort, I hooked up the central vac, cut off the toe end of my wife's pantyhose, put the homemade filter pouch in between the handle and the floor nozzle. My shop needed vacuuming anyway. Happy ending is that I found that little thin spring after carefully sifting through the pile of dirt I picked up.
So I learned a new skill, both revolvers got their internal contact parts and edges polished and the results on both are excellent. During careful, deliberate slow-motion cycling, there are no rough points anywhere and at the end of the cycle, the hammers release like they are tuned single action. Feels smooth like glass on glass.
Some pictures below...
His and hers:

The 642 before:

My 340 stripped:

My 340 smoothed:
