Sako Triace double fire

Discussion in 'Sako Handguns' started by Krzysztof Kolaczkowski, Apr 30, 2021.

  1. Krzysztof Kolaczkowski

    Krzysztof Kolaczkowski Member

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    Hi Guys,

    For a couple of weeks, my Sako double fires when using 0,22 barrel. It happens once per fifty round more or less. The trigger weight is set to slightly above 1 kg.

    Do you have an idea of what could be a possible reason? I use CCI standard velocity ammo.


    Best,
    Chris
     

  2. icebear

    icebear Sako-addicted

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    I would check the sear engagement. I have never worked on a Trace but if it's like any of the other high-end target pistols I've worked on, it will have a sear engagement adjustment that is set at the factory and held in place with Loctite or something similar. Sometimes these work loose or are "adjusted" by some owner or amateur gunsmith to where they will slip off and double or even go full auto. It could also be that the action is gummed up with old oil and grease and the trigger is not resetting properly.
     
  3. Krzysztof Kolaczkowski

    Krzysztof Kolaczkowski Member

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    Thanks for the hint! Indeed sear engagement screw wasn't set properly (according to the manual). Just one click but it could be the reason.

    Best,
    Chris
     
  4. icebear

    icebear Sako-addicted

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    Sounds like you may have it fixed. On a target pistol, the sear engagement is so delicately balanced that even a small discrepancy can cause problems. Let us know if that fixes the problem.
     
  5. Krzysztof Kolaczkowski

    Krzysztof Kolaczkowski Member

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    Hi,

    With this extra click on regulation, my Triace did feed the next round but it didn't pull the hammer back. So I had to set it back as it was. But I have also removed some dirt from between the trigger bar and the frame. 50 rounds and no problem but is not a statistically significant sample yet. Will observe and let you know.

    Best,
    Chris.
     
  6. BobGee

    BobGee Member

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    Hi Krysztof,
    Another possibility, given that you have already had to clean out some of the action, is that the firing pin is not retracting properly due to dirt buildup and you are getting an occasional “slam fire” when the breach closes. Easy enough to resolve, just drive out the two retaining pins, drop out the firing pin and spring and give the firing pin tunnel a good clean out with solvent and a bore brush or pipe cleaner.
    Bob
     
  7. Krzysztof Kolaczkowski

    Krzysztof Kolaczkowski Member

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    Hi Bob,

    I followed your advice and checked the firing pin. It was moving smoothly but I noticed some soot around the pin tunnel exit. I decided to give my gun a good bath then. I let the gun parts to stay in the kerosen bath for a while and then used a plastic brush.
    And that was left (OK, the pen is justto show you the scale)
    [​IMG]
    I'm embarrassed.

    First 60 rounds and no problem. I will shoot and observe but it's different gun since then - even on the trigger.

    Best,
    Chris
     
  8. Krzysztof Kolaczkowski

    Krzysztof Kolaczkowski Member

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  9. BobGee

    BobGee Member

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    Hmm, a load of crud. Looks a bit gritty. Hopefully the good clean has resolved the problem. Maybe you can now adjust the sear engagement as per the manual.

    Hope it stays good.

    Bob
     

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