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October 27, 2010
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I saw on Wolff that the factory weight is 9lbs, but they offer 7.5 and 8. Does anyone have any experience with the lighter weight mainsprings? I prolly would only go down to 8, but it is just a target gun anyways.
Additionally, are these weights the same for the 15-2 and 22?
February 29, 2012
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While not sure about the spring weight for the 22, I can relate my experiences with the Model 15-2 mainspring
I picked up a Wolf 7.5 and an 8lb main spring for my revolver, a fixed sight stainless 714.
My Dan Wesson .357 originally had a lighter than 7.5lb spring in the gun.
(Some Bubba had cut a few coils off the stock main spring, and it was real light)
The cut down main spring worked OK most of the time, but only in single action mode. Rarely I would get a real stubborn round that took 2 hits to fire single action.
But, it often resulted in frustrating light primer strikes when the gun was fired in double action mode. The offending round would normally fire in single action mode, if you manually cocked the hammer again, but doing so really annoyed me.
Things got a little better with the 7.5lb Wolf main spring installed in the gun. 100% reliability in single action mode, but the light double action strikes were still there. (around 2 or 3 per box of 50)
With the 8lb Wolf main spring I would still rarely get an occasional light strike in a box of 50 while firing the gun double action.
I contacted CZ USA/ Dan Wesson to order a factory weight main spring. Wolf does not sell a 9 or 10lb main spring for the Model 15, and I couldn't seem to find one any where else. The folks at Dan Wesson happily sent me a stock 9lb spring,(and a Dan Wesson sticker and catalog) and they were great to deal with. The 9lb main spring has been very reliable for me so far.
While I was putting the factory standard weight Dan Wesson 9lb main spring in my revolver, I performed the awesome "Average Joe Method Tune-Up" on my Dan while it was apart.
https://www.danwessonforum.com/forum/reloading/tuning-up-your-15-2-the-average-joe-method/
I slowly and carefully polished and cleaned up all the friction points, and then lightly re-lubed and assembled all the trigger parts. While I had the gun was apart, I also installed a small parts replacement kit from EWK, and a new firing pin from Numrich in the gun.
To say it made a world of difference would be an understatement. The trigger feels better now with the factory 9lb spring installed after the Average Joe tune up, than it did with the cut mainspring, or the 7.5lb Wolf spring installed.
The trigger is very smooth, everything feels great, and most importantly the gun is reliable now. It goes bang, instead of click when you pull the trigger. I have no complaints at all with the 9lb spring installed in the gun. This experience has sort of made me re-think my position on the use of lighter weight main springs.
Incidentally, along with reliability, the accuracy of the gun has also improved a little with the 9lb spring installed. I call that a win win situation, and highly recommend it to anyone else.
- Bullwolf
Dans Club
March 2, 2008
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DW offers only one mainspring for the Small Frame, so 22 is the same as 15-2/715 ...
As Bullwolf noted, the BIG payoff is to do at least a thorough cleaning and spring replacement, and to do any minor smoothing, flattening, de-burring, etc. you can. I don't think I have ever seen a post here from anyone that did the AJT and did not see a good to great improvement.
I went to a bookstore and asked the saleswoman "Were is the Self Help Section?" She said if she told me, it would defeat the purpose.
George Carlin
October 27, 2010
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Thanks for the help guys. Yeah I did the AJT on my 15-2 and it really helped along with the lighter trigger return spring, but I didn't mess with the mainspring at all. I picked up a 22 this weekend at the gun show and am planning to get in and polish it up sometime soon. I was going to get a trigger return spring for the 22 also, and entertaining picking up some lighter springs, but I may just get some factory weight and let the polishing improve the trigger.
June 25, 2011
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I just summoned the courage to do more than take off the sideplate, on my 15-2. No new parts just cleaned everything up, including a neglected cylinder catch. There were some nicks and cuts where the hammer traveled. I clipped about third a mainsping coil and everything went surprisingly easily. It fired 100% and is much smoother. Thanks DWF 
January 26, 2009
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I use the Wolff springs in my IDPA revolvers. One has an 8lb spring and the other a 7.5. They work well with Federal primers. In my ccw 715-2 I kept it stock and just replaced the trigger return spring with a lighter one from Wolff. I also polished the surfaces of the trigger parts. Can't always count on having a Federal primer in a ccw gun. I want it to go bang with any type of ammo.
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