I just bought an S&W 640-1 revolver. While it is precisely what I wanted, I have interrelated problems. I intend to shoot only factory ammunition. I have narrowed my choices to two - Federal 38 Special 129-grain Hydra-Shok, or Remington 125-grain JHP GS because I cannot tolerate the noise or recoil of 357 Magnum ammunition in such a small revolver.

Now to the problems. I have a progressive illness that affects much of my body that makes arthritis seem like fun. When I tried snapping the trigger, the finger pain was close to unbearable - but an emergency trumps pain. I have obtained grips that are shorter centerline of trigger to back strap. This will allow me to use more finger and less finger tip. I must obtain a trigger job that will reduce trigger action's poundage and, if possible???, have the trigger action stack near the finish and ease at the beginning.

1. Between the two factory cartridges, which one accepts the lighter firing pin impact while providing reliable ignition?

2. What gunsmiths can do the job(s)? If any is in western Montana, please identify the smith.

The shrouded hammer Smiths have light hammers so they have to use more spring to ignite. I'm sure it can be done but you might consider the hump backed models.

Also, look for the Speer 135gr Gold Dot load. It runs 860fps in special and 990 in magnum. It's a pleasant load and designed to expand at those velocities.

I just replaced my grip set with an S&W logo [Uncle Mike's??] boot grip. I never would have believed it if I hadn't tried them.

No trigger-associated hand pain.

Complete control of trigger and trigger action.

Unbelievable!
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And then, of course, my minor foul-up. I removed the grips to clean the revolver. . . . As most have anticipated, the grip screw went to the floor, probably somewhere under my stove. I just wasted the last 45 minutes searching my kitchen and beneath my stove for the screw.

Anyone who has the grip screw, please let me know the price shipped you want.