SP101 Trigger Catching

Discussion in 'Ruger Revolver Forums' started by Longcarbine, May 19, 2017.

  1. Longcarbine

    Longcarbine New Member

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    What would cause the trigger on my SP101 to hang up on the return.
     
  2. SavageGuy

    SavageGuy Active Member

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    Hmmmm. First off, has your gun been thoroughly cleaned?
    Does the trigger fail to return or just hang up? Also, what type of ammunition are you using?

    BTW, welcome to the forum!

    :welcome:
     

  3. buster40c

    buster40c Well-Known Member

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    Welcome to the forum and you might go to introduction thread to introduce yourself to the members.
    Like Savage said the gun could be gunked up and need a good cleaning.
     
  4. Longcarbine

    Longcarbine New Member

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    Thanks for the welcome. The gun is new and unfired, I have installed a reduce strength hammer spring, hammer shims and trigger shims but the trigger was hanging up before these were added. It occasionally hangs up completely but not always.
     
  5. SavageGuy

    SavageGuy Active Member

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    Hmm. Maybe give ruger a call and get their opinion on it. Fortunately, Ruger does have some of the best customer service in game.
     
  6. VThillman

    VThillman Active Member

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    Yeah, probably a job for Ruger.

    [Note: if your mods were not made with Ruger parts, you will need to restore the originals before sending the gun to Ruger - otherwise you're apt to lose the mods.]
     
  7. nickndfl

    nickndfl Active Member

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    It's a heavy pull stock. I have taken mine apart a few times and changed all of the springs. Did you have a chance to test it before you purchased? Was it purchased new? Sounds like it was not assembled correctly.
     
  8. buster40c

    buster40c Well-Known Member

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    Before sending back to Ruger you should put original parts back in it. Ruger will not mess with after market parts in guns for repair or warranty.
     
  9. greg_r

    greg_r Well-Known Member

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    How about the trigger return spring?
     
  10. buster40c

    buster40c Well-Known Member

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    I would agree with gregr that the trigger return spring is where the problem lies. It could be gunked up from the factory. Since he shimmed the trigger it shouldn't be catching unless the shimming was to tight. But like he said it was bad before he changed the spring. I would inspect the trigger for drag markings from rubbing metal to metal.
     
  11. nickndfl

    nickndfl Active Member

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    If it is brand new and was originally unmolested how did it pass QC?
     
  12. VThillman

    VThillman Active Member

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    If the problem is intermittent, it can easily sneak by QC. 'Intermittency' is the devil in the QC process.
     
  13. RedSoxRugers

    RedSoxRugers Member

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    Mine (KLCR .357) is back from Ruger.]]

    They replaced a few parts.

    Runs fine now.
     
    Last edited: May 28, 2017
  14. billrugerb

    billrugerb New Member

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    When I first shimmed my sp101 357, one of the hammer shims slipped out of place and caused a glitch but was ok when I replaced the shim.