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Thread: Trigger group problem - solved

  1. #11
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    Quote Originally Posted by MegademiC View Post
    you think the buffer may have been out of spec and not pushing the hammer down enough to engage the disconnector?

    or maybe the bolt bounced back so far it disengaged the disconnector? I really don't see that happening. This whole issue is weird.
    I have exactly some feeling of weirdness (is there such word?).

    Whole issue happened to me only once or twice when shooting double taps off hand, but almost every round when shooting single shots or trying double taps with mag rested on the bench.

    When I will have time (not soon) I will try to test with both recoil systems and 200fps camera to see what BCG is doing. I do not have access to faster camera, but I hope it will be enough to see if carrier bounce was source of problem.
    Montrala

    I'm sponsored competition shooter representing Heckler&Koch, Kahles, Hornady and Typhoon Defence brands in Poland, so I can be biased

    http://montrala.blogspot.com

  2. #12
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    I think it's a combination of these two parts, the WC TTU-3G and the JP SCS-15 recoil assembly.

    Neither part is defective, but the operating characteristics are different than standard parts.

    The SCS may allow carrier bounce and the trigger is fast enough to drop when the bounce occurs.

    Slow down the trigger or eliminate bounce and the problem goes away.


    Quote Originally Posted by WC web site View Post
    Because of the short, fast reset of the TTU, always use a firm grip and solid hold when shooting from the bench or prone to ensure that bump firing does not occur.
    Last edited by Clint; 08-31-13 at 11:22.
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  3. #13
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    Originally Posted by WC web site
    Because of the short, fast reset of the TTU, always use a firm grip and solid hold when shooting from the bench or prone to ensure that bump firing does not occur.

    I have 25+K rounds through my 3GTTU triggers in various rifles and will emphasize that what WC says is indeed correct. Firm grip + loose hold + prone = rare double. Very fast double tap + loose grip = rare double. This is still my favorite trigger.

  4. #14
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    Quote Originally Posted by Sevo View Post
    Originally Posted by WC web site
    Because of the short, fast reset of the TTU, always use a firm grip and solid hold when shooting from the bench or prone to ensure that bump firing does not occur.
    I'm aware of that and I have some experience with light and/or short reset triggers on semi-auto rifles. This was not an issue I encountered.
    Montrala

    I'm sponsored competition shooter representing Heckler&Koch, Kahles, Hornady and Typhoon Defence brands in Poland, so I can be biased

    http://montrala.blogspot.com

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