Questions on Wolf reduced power springs on 1917

[Bill_in_fl]

I've been trying to learn about these Wolf reduced power springs for an N frame, that are supposed to really decrease the trigger pull tension and slick up the action. I've got a few questions I'm hoping some of you can answer for me.

First and most important question is, will these work on my model 1917 S&W with its longer hammer throw?

From what I can see there appears to be a thinner main hammer spring. There is a type 1 which is exactly the same tension as the factory mainspring, and a type 2 which is supposed to be less tension. Is that the only two tensions mainsprings available?

There are at least four different trigger rebound springs of different tensions called#12, #13, #14 and #15 that we are supposed to choose one or the other to install. How do we know which of these three rebound springs to choose? Do those numbers stand for tension in pounds? Is the Wilson kit the same thing as the Wolf kit? Which of the ones pictured below is the best one to buy?

....and again, the most important question, will they fit my S&W model 1917?

Here's a few pics of what I'm talking about.....

Wilson Combat Smith & Wesson Spring Kit # 12, # 13, # 14 Includes Main Spring for reducing pull.

Smith & Wesson K/L/N-201Pro spring kit from Brownells.

SMITH & WESSON K L N FRAME Reduced Power POWER RIB SPRING PAK #17121 w/17185

 

[dirty gary]

Sorry I can't answer if they fit your 1917, but I recently installed the Wilson Combat kit in a Model 19-5. You are correct, the numbers are pound ratings. I installed the 12# spring and mainspring that came in the kit. I'm quite happy with the results, especially for a small investment. Next investment will be a jig for polishing the trigger. Try calling Brownells about the fit

 

[Muley Gil]

The physical size is the same. 1917s traditionally came with heavier springs, due to military primers and a bit of flex in the moon clips.

Most folks try different pound rebound springs to find the one that does the best. Friction in the action will determine how light you can go.

 

[Bill_in_fl]

But again,....will it drop in and work in my 1917 S&W?


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[Muley Gil]

But again,....will it drop in and work in my 1917 S&W?


.

Yes, the parts will fit. But you need to take the revolver to the range and see how it fires. Sometimes, the lightest rebound is too light to kick the trigger back after firing. It is trial and error. Make sure the mainspring strain screw is tight.

 

[haggis]

Factory rebound slide springs are 18 pounds. I don't go below 14 pounds to insure reliability. Make sure your mainspring screw is fully tightened - loose ones tend to get looser with use. A small (really small) drop of blue Loctite will help if the screw loosens from a fully tightened condition (which sometimes happens even with new guns).

The real secret to a "light" pull is smoothness. An older model has probably self-burnished itself so that no additional smoothing is needed. Should polishing be necessary, and if you don't know how to polish the action parts, get some expert advice to keep from ruining internal parts from over-polishing.

Buck