[45R]

What # Spring Kit for a GP100 for reliable ignition?

[Sisco]

I bought the shooters pack from Wolff, comes with three hammer return and two trigger return springs.
It's been so long since I put them in I can't remember which ones I used, you gun my differ from mine anyway so the best bet is to try different combos and see what works good for you.
Even with the combo I selected I got light strikes using CCI primers in my reloads, have had no problems using Winchester primers.

[Jim March]

Well...the more polishing and smoothing you do in there, the lighter the spring you can run - less friction, the hammer moves forward faster regardless of the spring grade.

[Sarge]

I don't mess with light springs on carry guns, either for hunting or defense. If it's soley gonna be a paper-puncher that's one thing, but for any other application stick with the factory weights.

GP's, Redhawks and Super Redhawks occasionally have a condition known as "insufficient firing pin protrusion", which is pretty much self-explanatory. .050-.055 is the industry standard.

I just got done re-working a 3" GP that started at I was getting a few light strikes with, and when I checked the firing pin protrusion it ran at .030". Some careful refitting and a new transfer bar have finally brought it up to .050"- and the light primer strikes are gone.

I mention this because if your firing pin protrusion is under spec, even the factory spring can't do it's work. Add a lighter spring and you are asking for trouble.

Shoot the dickens out of that gun and you'll probably note a big improvement- both in the way the action feels, and in how well you shoot it.

[45R]

Sarge-
Its sole purpose if for paper punching. :)

Jim-
This thing has been dry fired lots and lots of times. The trigger is getting better...just want to make it even better :)

[4v50 Gary]

Best springs? Why the factory springs of course. Ruger makes them right the first time. Stainless steel coil wire springs, how can you beat them?

[Brad Johnson]

I've tried about every combination that Wolffe has for the GP100, and I've finally settled on the reduced power trigger return spring and the 10# mainspring. The 9# spring resulted in an occasional light strike.

Brad

[45R]

Does anyone know what the stock # spring is?

[MSB9021]

Hello.
The stock hammer spring (according to Wolff's catalog) is 14 lbs., and the trigger return spring is shown at 12 lbs.
I've used a 10lb hammer spring with a 10 lb trigger return spring in my 3 and 4 inch GP's and have had reliable ignition with all factory and handloads I've tried. This includes CCI, Winchester, and Federal primers in the handloads.
How light you go will depend on how rough (or smooth) the internals are on any given GP specimen. I could probably have gone lighter in one or more of my GP's, but the 10/10 combination was consistent across 4 individual GP's - and it was easy to remember.
This is only my own personal experience, though.

[45R]

Thanks for the information guys!!!