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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    Yep learned that the hard way but the huma air mod 30 was a disaster once I went over 20 fpe… will look into a different option in the future maybe a Donny fl one of their bigger models
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    Just a follow up to clarify for any misleading info, the gun is shooting great again, the culprit was the quick connect on the behemoth moderator, I had applied son grease for easy removal and at the same time some purple loctite on the adapter thread because I was having the issue of...
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    I love the way the gun functions and shoots it’s just this chaotic change of performance with no apparent explanation that is triggering me
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    Hey Steve thanks again for the detailed insight. I am starting my session with 260 bars and ending just above 200, the power setting is one turn open, velocity is actually pretty stable, between 760 to 750 fps on my chromy and the deviation is about 3 to 6 fps between shots and when things go...
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    Hey Steve thanks for the info, I’m new at this and will eventually build my filling equipment set to the required specs, however the issue with loosing that accuracy and the widened group size after shooting the first round is my concern, mainly for the sake of knowledge and for making sure...
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    definitely the case but does that actually cause such a drastic shift in poi! Everything else is tight and shooting in the sweet spot between 26mpa and 20mpa but to stay there I’m having to refill after every mag
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    Huben Huben Gk1 loosing accuracy after 20 to 30 consecutive shots

    My Gk1 after a painstaking tune with 18.1 JSB at 760 fps was producing single hole 5 shot groups consistently, until things went south with a shift of POI downwards and to the left and a group size way over 1.5 “ at 10 yards… happened a few times and what I’ve noticed it was after 20 to 30...