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Ruger GP100 Trigger

bersh
I recently picked up a Ruger GP100 that is really in great shape. My only beef so far is that the trigger is really rough in DA. The pull is fairly heavy, which is what I expected and I can fix this with a spring kit. What surprised me was the fact that there is a hitch in the middle of the pull. It pulls fairly smooth initially, then catches and requires a lot more effort to continue, then quickly breaks and gets far enough to drop the hammer.

When I remove the hammer and cycle the trigger and cylinder, everything seems nice and smooth, so the hitch is related to the hammer and how it intereacts with the trigger group.

Are there any simple things I can do or areas I should concentrate on for smoothing/polishing? Also, as far as spring kits go, I've got a Trapper kit coming my way, and I'm probably going to order a Wolffe kit as well. At what spring rate (both trigger return and hammer) does reliability become an issue?

Thanks,

Scott
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Comments

7 comments

Date Votes
  • 918 collector
    Simplest solution: dry fire as much as you can. The action will smooth up with use and you become more familiar with the gun. I did that with my Redhawk and was glad I didn't bother to get an action job. I'm told Ruger is really sticky about messing with the internals so consider it might void your warranty if you modify (as opposed to replace)any of the parts. Some may advise the use of snap caps but I don't know if it will hurt the gun if you don't.
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  • heavyiron
    Hi,

    My advice is get the Wolff spring kit and replace the hammer spring and trigger return spring.

    The hammer spring controls the "feel" of the trigger and the trigger return spring controls the force required to depress the trigger. The factory trigger return spring is 12 pounds. The replacement trigger return springs can go to 8 pounds or 10 pounds.

    Here may be the source of your problem. The trigger return spring plunger is sometimes a very tight fit on the GP100. In fact, it can be so tight that it requires considerable force to remove it from the trigger guard. If the plunger is a tight fit on your pistol this could be catching the trigger pull.

    My advice would be to install the 9 pound hammer spring and the 8 pound trigger return spring. This should give your pistol a smooth 2.5 pound trigger pull. If the spring plunger is difficult to remove either lightly file or use emory cloth and polish the plunger to the point where it will easily slide in or out of the hole in the trigger guard. If it still catches, it should probably be taken to a gunsmith, but I bet doing the above will solve your problem. The Rugers really respond well to spring replacement and you should have a superb trigger after replacing the springs.

    I use a 9 pound hammer spring in my GP100. It works great with most primers. However, I reload almost all of my own ammunition. If I use CCI primers, which are known to be "hard", I will get occasional misfires. Therefore, I would say if you are using a softer primer or non-CCI loaded ammo, the 9 pound hammer spring should be reliable.

    The GP100 with a good trigger is a real joy to shoot and there is a considerable accuracy improvement.

    I hope this helps and enjoy your GP100. It is one tough pistol.

    Heavyiron
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  • RCrosby
    The springs, for sure, and first. After that you may want to get a stick of jewelers rouge. Shave off a bit of "dust" and desolve it with some WD-40. Put a drop or two on all pivot and other contact points and spend an evening dry firing. Flush and lube.
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  • William81
    Trade it in on a S&W....[;)]

    Just kidding, my buddy replaced the springs in his and it helped somewhat.
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  • nononsense
    This post is over 3 years old and bersh hasn't been here since...

    Best.
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  • William81
    Wow...did not notice the start date of the thread, do you think he still wants to know..[:D][;)]
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  • konamtbiker
    Maybe its his ghost returning from the grave too find out about a trigger on the other side.....
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