Trigger Pull for M67 and M617

[Seldom]

I had a gunsmith do an action job on these nearly new revolvers some time ago. The trigger pull on both is just a hair over two pounds with no creep. After years of CAS where my revolvers had two and a half pound pulls, I find that this has become my absolute minimum. Is there a simple way to increase my trigger pulls on these two guns to 2.5 lbs.? I'd like to do this myself as the above gunsmith (like so many others) insists on super light trigger pulls. But they're my guns and I want what works best for me!

 

[Ashlander]

If a buy a used gun with a "too light" trigger I check the strain screw and if that's tight I put in a factory strength main spring. It might not be the best answer, but it's a good place to start -- and it's cheap and easy.

 

[Seldom]

If a buy a used gun with a "too light" trigger I check the strain screw and if that's tight I put in a factory strength main spring. It might not be the best answer, but it's a good place to start -- and it's cheap and easy.

I experimented with the M67 before I posted the original note today. It has a lighter aftermarket mainspring. Earlier I installed a set screw in place of the original flat head screw. I tried different tensions and the result came up 2 lbs every time. Putting the original factory spring and screw in had no appreciable effect either. I'd sure hate to sell these guns but it may come to that. They are both extraordinarily accurate but sometimes I touch off the trigger before I'm ready and oh man I hate to waste shots.

 

[Nightowl]

Check the trigger rebound spring and if it is cut or an aftermarket spring, try installing an original spring. Sometimes this will add a bit to the single action pull. If he has polished the single action notch on the hammer or point on the trigger, you may have to replace one or both. In my opinion, those areas should never be touched, unless there is pushoff, in which case the trigger can sometimes be stoned to correct it.

Two pounds is too light for a Smith single action pull, and below factory specs.

 

[Fuddham]

The rebound spring will correct it. I love a 2lb trigger pull, so if you have to sell on or both send me a PM. I have a couple PPC revolvers with 2 lb single action triggers and love them. I am used to shooting benchrest rifles with 2 oz triggers

 

[Seldom]

My gunsmith indeed left the original trigger return springs in an envelope with the cases. Replacing them took less than ten minutes. Now both have four pound pulls in single action. Three would be better but I can live with it especially since both are extremely smooth and predictable with absolutely no creep. Thanks much. Are they ever going to be for sale in my lifetime? Nope. Nope. Nope.

 

[scooter123]

That 4 lbs. trigger pull with the original springs indicates your gunsmith didn't alter the sear surfaces on the hammer and trigger, which is very good news and demonstrates your gunsmith is a good one.

Because until rebound springs in a variety of weights became available many gunsmiths would alter the sear surfaces to lighten the single action trigger pull. The problem with this old school method is the geometry of the altered sear surfaces places the wear point on the tip of the sear and this leads to push off issues down the road.

Now for some more good news. Log on to Brownell's and order up a 14 lbs. Rebound Spring for your revolvers. Then install them in your 617 and model 67 and you'll find your single action trigger pull is now just a touch over 3 lbs. Yeah, it really is that easy.

 

[Hapworth]

...I'd like to do this myself as the above gunsmith (like so many others) insists on super light trigger pulls. But they're my guns and I want what works best for me!

Any gunsmith who insists on the trigger pull he likes instead of the one his customer wants (and in some cases requires) is a lousy one and to be avoided.

 

[Seldom]

scooter123: As I suspected also. He said the notch on the S&W hammer was on the small side relative to other manufacturers and was not to be altered. I may just get the Brownell springs you mentioned but I didn't see them on their website.

Hapworth: Agreed!

I really like these revolvers now and can't wait to try them out at the range.