A trigger too light...

[Dennismn]

I bought this 3" model 66-6 as a box of parts dirt cheap- it was originally set up with hi-viz sights.

It had been underwater for a couple weeks in the flood they had in Cedar Rapids some years back - the owner took it apart to clean and dry it, couldn't figure out how to put it back together and just bought a new gun.

I replaced a couple parts, put it back together and sent it to S&W for refinishing and their Master revolver action package. This was 7 - 8 years ago.

This isn't the first gun I've sent in for that work - the other two are phenomenal, I'll put them up against the triggers on a Colt Python any day of the week.

This last one, the 3" 66-6 took some massaging but it's turned into a great tack driver with a silky smooth double action.

Except the single action is almost dangerously too quick to fire.
Any suggestions? I suspect they over polished the fit between the hammer and trigger. What do ya'll think?

 

[ken158]

Easy fix for armorer - location?

 

[Dennismn]

Easy fix for armorer - location?

Looking to know what the fix is first.

 

[BLUEDOT37]

Except the single action is almost dangerously too quick to fire.

Could be the rebound trigger spring is too light, for one reason or another. It's a main component of the SA's pull weight. Might try putting a standard weight rebound spring in it to see if that fixes it.

Have you measured the SA trigger pull?

.

 

[scooter123]

Bluedots reply is EXACTLY what I would have said. To expand on it a bit I have found that a 14 lbs. rebound spring will produce a single action pull weight of just a hair over 3 lbs. with the sear on the trigger ground to the factory standard. I would suggest installing a 14 lbs. rebound spring and then taking a measurement on the weight produced. If it's lighter than 3 lbs. have a good smith reset the angle on the trigger sear surface, if it's at 3 lbs. or real close install the factory 16 lbs. rebound spring to get a pull weight of about 4 lbs. if you want a heavier trigger.

BTW, in single action the typical sear creep for a S&W revolver is 0.014 to 0.018 inch, so they all have what many refer to as a "hair trigger".

 

[Dennismn]

Could be the rebound trigger spring is too light, for one reason or another. It's a main component of the SA's pull weight. Might try putting a standard weight rebound spring in it to see if that fixes it.

Have you measured the SA trigger pull?

.

1.45 on a digital gauge, the rebound trigger spring is a great tip, I have several laying around. I would like it to be around 3 pounds.

I have the factory original main spring installed.

 

[Dennismn]

Bluedots reply is EXACTLY what I would have said. To expand on it a bit I have found that a 14 lbs. rebound spring will produce a single action pull weight of just a hair over 3 lbs. with the sear on the trigger ground to the factory standard. I would suggest installing a 14 lbs. rebound spring and then taking a measurement on the weight produced. If it's lighter than 3 lbs. have a good smith reset the angle on the trigger sear surface, if it's at 3 lbs. or real close install the factory 16 lbs. rebound spring to get a pull weight of about 4 lbs. if you want a heavier trigger.

BTW, in single action the typical sear creep for a S&W revolver is 0.014 to 0.018 inch, so they all have what many refer to as a "hair trigger".

I know, I have 3 other performance center guns and one other that I sent in for S&W to work over with the master work to compare this one to.

In comparison, a well broken in 625 V-comp has about a 2.85 pound single action, a 586 L-comp at about 3.25 - this model 66? 1.45

 

[357-RevolverGuy]

Some of us are on the opposite end of the scale and do everything we can to have a light trigger pull like that. 1.45? Sweet baby Jesus that would be a dream to shoot, lol.

 

[JDinAZ]

Some of us are on the opposite end of the scale and do everything we can to have a light trigger pull like that. 1.45? Sweet baby Jesus that would be a dream to shoot, lol.

That's for sure. I lucked out when I picked up my 629-3 on a private sale out here in AZ. Gotta love those parking lot deals at Bass Pro.. You breath on it in SA and it goes off. Never measured the pull weight though.

 

[1sailor]

I've changed out a lot of springs in my various revolvers. Mostly mainsprings and rebound springs. My experience has been that the rebound spring has a tremendous effect on trigger pull. Probably more so then the mainspring. Or at least as much.

 

[cmj8591]

The fix is to stone the engagement surface on the trigger. Essentially, what this does is to dull the edge and create more friction between the trigger and hammer and thus increase the force needed to pull the trigger. If you use this fix and leave the rebound spring alone, you can increase the single action pull without upsetting your double action pull. This is an easy fix for an armorer. I really like a very light single action pull and just keep my finger off the trigger until I want to actually shoot.

 

[Dennismn]

Some of us are on the opposite end of the scale and do everything we can to have a light trigger pull like that. 1.45? Sweet baby Jesus that would be a dream to shoot, lol.

Yea, the problem is I have some serious arthritis issues so my motor control in my hands can be a problem.

I've had guys with normal hands who are regular shooters, albeit not revolver guys who handed it back saying it scared them...

Glockies, go figure!

 

[JohnRippert]

I have a Colt SAA 3rd gen that has a 2.75lb trigger. That is just a bit light for my taste. 1.5 would make me piss myself.

 

[scooter123]

I really like a very light single action pull and just keep my finger off the trigger until I want to actually shoot.

I do this and have a couple of tips for those think about going really light. First, DO NOT WEAR SHOOTING GLOVES, because you won't feel the trigger at all when the gun fires. Second, don't start out by practicing in double action for 50 or 100 rounds, because you just won't have any "feel" for how much force you are applying to the trigger. I will also point out that after practicing double action weak hand only you won't have a clue about how much force you are putting on a 3 lbs. trigger if you decide to finish up with a couple of longer ranges shots in single action weak hand only.

BTW, learned all these lessons first hand. Good news is that trigger disclipline my mother drummed into me starting at the age of 10 meant that I did have the pistol aimed at my target before touching off the trigger unexpectedly. However I will NOT report how much of a miss resulted from these mistakes.

 

[JDinAZ]

According to the S&W Armorer's binder for KLN that's sitting infront of me the fix is to stone it (sharpen) not dull.

Sharpen creates a heavier SA and dull creates a lighter SA. Binder calls for 3 lbs SA pull

OP if you need more details PM me and I'll help you

 

[ken158]

Looking to know what the fix is first.

Need to be assessed but strain screw, rebound spring and proper hammer trigger fitting and maybe push off. One or more or those checks corrected will resolve your issue.