GP100 spring kits ??

41 Magnum

Single-Sixer
Joined
Oct 11, 2006
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Pa. USA
:? OK guys. I know there are a few who have changed out the factory springs in their GP's for a better trigger pull. There are a couple options as far as the kits go.

What I'd like to know is which spring kit to buy, which of the assortment you have used, & also, how much "real" difference will it actually make ?

Also will the springs cause any reliability issues ? :?:
 
Installed the wolf kit, if I remember right the 8 and 10lbs springs, makes quite a bit of difference but if you have creep that will still be there. Well worth the effort. I load my own haven't needed to switch to federal primers as I've had no misfires.
 
I got a WOLF kit from Midway USA for $10.00, i put in a 12lb hammer, a 8lb trigger spring. Go to You-tube and watch a man change them out a few times . Getting the hammer spring+bar out of the gun is easy.Cock the hammer back put a pin in the whole, release hammer and remove the unit. To remove the spring ,put the TOP end it in a vice ,so that the removable pin you put in is up. Cup your hand over the top and push down on the bracket, remove the pin set the small bracket +old spring. Now the hard part ,you need 3 hands to do easy. get a friend. Next, put on the spring and the small bracket and push down -Have your friend put in the retaining pin. Put gun back together. Its not hard as it seems, just go and watch it done . Hop this helps ya....
 
The Wolf kit is a good one. Installing reduced power springs will reduce the trigger pull a lot depending on which ones you use. The stock springs are 14# for the hammer and 12# on the trigger return/latch.

http://www.midwayusa.com/viewProduct/?productNumber=303418

Use the combination that feels right for you. You must have positive function on a self defense gun. Stock springs are the most positive. A failure to reset the trigger or a light primer strike is not a good thing in a self-defense situation.

I think I put the 10lb mainspring and the 10lb trigger return spring in my GP and I have had no problems and I have a much better trigger pull, almost perfect I would say. :D

...Jimbo
 
If one is trusting their life to the gun, it must be as reliable as can be reasonably established.

I have a pair of GPs, and experimenting with the Wolff spring-kits (who remembers 'Bullseye' kits for their Security Sixes?) showed me improved trigger pulls, but both, regardless of which kit spring used, could allow failures under certain (and admittedly abstract) conditions.

So if the gun is a toy spring away, but if the gun is a tool then one must be utterly convinced of its reliable function.

Can be done, gets done all the time, but not always. Simply ensure you have reliable mechanical function along with reliable ignition under any potential use environment and conditions.

Or, "why Tim was eyeballing Bowen's site last night", ay?
 
-trigger return
-primer strike

These two seem to be the worst actors. One can overdrive the trigger and it doesn't return to its firing position rapidly.
There may not be enough firing pin energy to ignite primers if certain conditions exist, like a slightly dirty cylinder face, or a slightly uneven cartridge rim, or a slightly unseated primer.

I am NOT against installing spring kits, as we all klnow some guns cry out for them, but reliable function, IMO, is paramount.
So I suggest testing kits with that criteria foremost.
 
Agree with above. Stock the trigger pull DA on my GP was about 12 lbs. Don't know what the SA was. Had the gun tuned and put in the Wolff 9 lb main and 8 lb trigger spring. DA is about 7.4 to 7.6 lbs and SA 2.5 lbs. That said feels a bit light. Think I will put in 10 lb main and 10 lb return spring. Using the lightest springs only works well if the gun has been tuned i.e. polished inside as this reduces friction. Also, this assumes decent firing pin protrusion and you must consider how fast the trigger returns. If one was building a "game gun" I think the DA could be brought down to 6 and maybe 5 lbs, at least that is what Randy Lee of Apex Tactical stated once but this is with all the bells and whistles.

It would not hurt to get a copy of Iowegan's IBOK's for the GP. He offers these for sale on the "other" Ruger site.

Aside from Wolff, there are Wilson, Brownell's and Bullseye spring kits. Some state Wilson is a repackaged Wolff - don't know if this is so and same applies to Brownell's. Yup, I remember Bullseye and Trapper Lynn Alexiou's custom shop. Had some nice old catalogs on customized guns with color pics. At one time someone also made a bronze mainspring strut wherein one could adjust the length of the mainspring to vary tension, too. Guess that is being a "dinosaur".
 
GP100man said:
Mine have the 10# trigger return & 12# hammer for 100% reliability !!

+1 to this. My GPs have the same setup. The 10 lb. mainspring really makes for a nice trigger pull and I use it in one of mine that is for "range use only". I haven't had any missfires with it but I just wouldn't want to take a chance with the 10 lb. spring in a GP100 that I counted on for anything.
 

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