Finally My Grail Gun * S&W 646 *

[SeamasterSig]

Thanks, I kinda like that idea. I'll check your threads for a pic of yours!

I don't think I ever posted any pictures of the brass bead sight I ordered from S&W. And if I had, they would have disappeared during the recent Photobucket controversy. However, there should be some pictures of such sights on the forum (unless they were stored on Photobucket servers). A brass bead will work as well as a gold bead as long as you polish it once in a while. In general, I find that the brass/gold bead works well as long as there's a little light, in particular from behind you. I have never used a fiber optic sight, so I'm not sure which one would be easier to see in low light.

 

[condor bravo]

Kingsmoke,
Take a look at my post "moon clips for s&w mdl 646" and see if you would like the free moon clips for your 646 that I'm trying to give away.

 

[SeamasterSig]

When I took the grips off to clean the weapon, I could see the strain screw backed out. I'll try some Locktite or a different screw.

Even though you mentioned that thread locker solved your problem, call S&W to order a new screw, if nothing else, just to have one handy. They only cost a couple bucks. Your issue may be a slightly worn tip of the screw. I had the same problem with my 66-2. The screws wear down, and sometimes people file them down as a cheap alternative to a real trigger job. When I called S&W, they sent me a new screw for the price of the shipping if I remember right. If the screw is the issue, you'll know right away because the new one will make the trigger feel a bit heavier, should eliminate the light primer strikes, and it shouldn't back out so quickly.

If your light primer strikes persist, don't rush out to buy a new main spring strain screw. Take a "SPENT" primer, remove the anvil, leaving you with just the cup! Put the cup over the end of the strain screw and tighten!
jcelect

The primer cup trick works well if your strain screw is worn or has been filed down; how much heavier your trigger will feel after adding a primer cup will depend on how worn your strain screw is in the first place. However, I think of it as a temporary solution until a screw with the proper length can be obtained.

 

[Kingspoke]

Kingsmoke,
Take a look at my post "moon clips for s&w mdl 646" and see if you would like the free moon clips for your 646 that I'm trying to give away.

Thanks, didn't see this one coming!

 

[Kingspoke]

Even though you mentioned that thread locker solved your problem, call S&W to order a new screw, if nothing else, just to have one handy. They only cost a couple bucks. Your issue may be a slightly worn tip of the screw. I had the same problem with my 66-2. The screws wear down, and sometimes people file them down as a cheap alternative to a real trigger job. When I called S&W, they sent me a new screw for the price of the shipping if I remember right. If the screw is the issue, you'll know right away because the new one will make the trigger feel a bit heavier, should eliminate the light primer strikes, and it shouldn't back out so quickly.


The primer cup trick works well if your strain screw is worn or has been filed down; how much heavier your trigger will feel after adding a primer cup will depend on how worn your strain screw is in the first place. However, I think of it as a temporary solution until a screw with the proper length can be obtained.

Good info., thanks! I do keep extra strain screws, however this one seemed to put the right pressure on the spring, so I went with the locktite, though I think either method would have worked. I also put in an extended firing pin, and now the gun is right where I want it.

Next up will be the front sight, which I'm considering the brass bead, that you mentioned. I also emailed HiViz, to see if they have any solutions to the dovetail sight on the PC version. The paint works great, but wears when cleaning the gun, and looks kinda crappy!