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  1. #11
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    Default Re: CZ 75 pre B trigger issues

    I have another 9mm at home, I also put a bunch of the reloaded ammo through my friend's 1911 colt 9mm and they worked fine. I loaded according to what the somchem book specified.

  2. #12
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    Dec 2010
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    Default

    Quote Originally Posted by Elmar View Post
    I have another 9mm at home, I also put a bunch of the reloaded ammo through my friend's 1911 colt 9mm and they worked fine. I loaded according to what the somchem book specified.
    Still, buy a box of factory ammo and verify. If the problem persists then you know it's the gun.

  3. #13
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    Jul 2008
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    Default Re: CZ 75 pre B trigger issues

    Eliminate the ammo. Shoot factory rounds and test (As recommended by BigT)

    If the problem persists, I would replace the trigger return spring, hammer spring, sear spring and trigger bar spring.
    These are easy to replace (except for the sear spring on the pre-b which might be a bit of a pain to remove the old-style safety lever) and you can easily do this yourself.

  4. #14
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    Jul 2008
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    Default Re: CZ 75 pre B trigger issues

    Trigger spring R70
    Sear spring R40
    Trigger bar spring R55
    Hammer spring R85

    All available online from Jizni

  5. #15
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    Default Re: CZ 75 pre B trigger issues

    Loading to what the Somchem book states is a good guideline, but the book cannot adjust for inconsistent batches of powder. Having said that, the CZ75 have a reputation of shooting virtually anything which chambers.
    Load, chrony test, adjust, chrony.

    A good rule of thumb is to load your 9mmP rounds such that they make a factor of 125.
    Velocity (ft/sec) x bullet weight (grains) / 1000

  6. #16
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    BigT's Avatar
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    Default Re: CZ 75 pre B trigger issues

    You know, its never possible that its the dudes reloads.


    And its almost always, the dudes reloads :)
    "Learning only occurs after repetitive ,demoralizing failures!"

    Pat Rogers (RIP)

  7. #17

    Default Re: CZ 75 pre B trigger issues

    Quote Originally Posted by BigT View Post
    You know, its never possible that its the dudes reloads.


    And its almost always, the dudes reloads :)
    BT why spoil a good argument with facts?
    LoL. Most important fact of life - if you cannot fix it with a 4 pound hammer then it must be an electrical problem.

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