GP 100 Springs

[500fksjr]

I just received my Wolff spring kit today they have a 9,10,12 lb Hammer spring and a 8 an 10lb trigger guard spring. My question is what are the factory springs pound settings? and which Wolff Springs is working best for you folks? I am thinking 10 an 10 would be Good. Thanks for the help!

[500fksjr]

Well today I found a gent with an electronic read out to check the GP 100 single action 4.86 lbs avg of 5 reads/double action 10.52 lbs 5 reads...so we will try the spring kits...

[wheelguns]

Offhand, I can’t remember the factory weights, but the wolfe website will tell you. At least they did when I bought springs for my wife’s sp101.

[awp101]

I don't know the factory weights either but I installed a 10# trigger return spring, a 12# mainspring and a .003" shim on each side of the hammer. I still can't determine if the shims did anything or not...

[warhawk]

Wolfe website says the factory mainspring in a GP100 is 14#.

This cost me a quick $60, new springs on the way for several guns.

[hardscrabble]

I have replaced the springs on all my DA Rugers, including two GP-100's. I started with the lightest hammer (main) spring. There were occasional failures to fire in most of the guns (like 3 to 5 out of 100 rounds). I went to the middle weight spring and have not had any problems since. I don't even start with the lightest replacement spring anymore. All of the springs supplied are lighter than the factory spring.

As far as the trigger return spring, there are several places on the internet that show how to clean up and smooth the housing it rides in. This is very important. The heavy spring is needed there if it is not cleaned up. Once it is cleaned up, you can use the lighter replacement spring.


The spring changes make the trigger much better, but it is still not as good as a stock S&W.