My 2.5" 66 no dash trigger pull is too light for me @ 3#. I need something on the order of 4-4.5#.

Bad news is the sgl and dbl action pulls are REALLY smooth and I do not want to lose that.

There is a leaf spring in the grip with a screw for adjustment (can u tell I am not a revolver guy?) and I wonder if I can add a # or so of pull weight by adjusting the screw.

Thanks

seabreeze

Generally that screw is supposed to be snugged down. Backing it out slightly is a way to lighten trigger pull but may cause misfires from light strikes. If it is all the way snug you can try inserting a fired primer cup under the stem to increase the pressure of the screw on the spring.

I'm not doubting you so pls. don't misunderstand but I've never seen a double action revolver w/a three pound double action trigger. My best 14, which has been professionally worked for competition, has an 8 pound pull. I'd be very careful with that gun.

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Old Cop
LEO (Ret.)

I assumed he was writing about the SA pull. OP, please verify.

Single action trigger pull weight is largely dependent on the interface of what's called the single action bevel of the trigger and the single-action cocking notch on the hammer. Spring tension is exerted on these two engaged surfaces when the action is "cocked". The trigger bevel
is stressed against the hammer notch by the rebound spring inside the rebound block, and the hammer is under stress exerted by the mainspring.

If the trigger bevel is at the optimum angle and sharpness, the step at the hammer notch is not worn or damaged, OEM springs are set at
factory levels, and the gun is clean and free of debris....then a nominal trigger pull can be expected. This pull is usually around 3.5lbs, but can vary between 3 - 4.5 lbs.
In older, well used revolvers, (or in the case of newer guns with out of spec, altered or worn parts) if the SA pull drops below the factory minimum of 3lbs, a slightly heavier SA pull can usually be achieved by stoning/sharpening the trigger bevel at a pre-determined, precise angle, and/or, replacing the rebound spring, and mainspring......and altered mainspring strain screw if found, with a new OEM screw. Hammers and triggers that are worn or damaged and cannot be repaired can be replaced with new OEM parts to restore proper function.

Although your revolver appears to meet the factory spec minimum, you could have the gun evaluated by a trusted, qualified gunsmith or S&W revolver armorer in order to determine if the SA pull could be increased by intervention with new parts/springs or restoring/re-sharpening the bevel angle on the trigger. You may find that the rebound spring has been altered (cut) or replaced with a lighter spring, or the mainspring is not at full tension, which can affect the SA pull weight.

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Ret. LE, FA Instr, S&W Armorer