Huben Any issues or problems with Huben gk1 please share your experience
- Thread starter windowtintz
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Found another one: the power setting screw can very slowly and gradually unscrew itself (by tiny amounts during each shot), leading to a slow increase in power over time. It is more pronounced at lower power settings.
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It is a set screw, with a rubber rod inserted in a hole parallel to it which presses on the threads to sort of keep it in place. It might be possible to make it 2 shallow/filed set screws one on top of the other, but the length of the original screw doesn't lend itself to that very easily.
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Cool looking moderator on the shorty, I got one on my 25 shorty and really like it, Does a good job also.
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The only issue I've encountered with a stock GK1 in .25 (stock except for an aftermarket loading gate) so far is squeezing the trigger and the gun doesn't shoot. Sometimes I have to squeeze the trigger twice. I'm not sure if it's because I'm not letting up enough off it or what. This has occurred shooting seated, 34-grain, domed-diabolo pellets. Anyone else experience this shooting pellets?
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That is one beautiful looking pistol Mike!
I wish I could get a shorty conversion kit, but unfortunately Kelly is the only one in the world doing it, and he doesn't ship abroad
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@Ezana4CE This should only occur when getting to the lowest air pressure the valves will operate on. Also, if you squeeze the trigger and it doesn't complete a shot cycle, pay attention to it and where you are aiming because there may be a delay in rhe shot going off when your not on target. The Rttlr will do the same.
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@AirgunHobbyist I don't understand the bit about the delay occurring when I'm not on target. If it abruptly point the pistol towards the dirt and squeeze the trigger, I expect a projectile and compressed air to discharge just as I do when the gun is pointed at the target.
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@Ezana4CE I have both read and experienced the delayed shot, as well as the gun not shooting when having pulled the trigger with the semi-autos. With the 45, I was testing it's lower air limits and it didn't shoot right away. I dropped it off target for a second and the chronograph didn't make it. ;-)
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@Airgun-hobbyist I think I can better understand what you mean. I'm not sure if it was delayed in my experience. I had to let up and squeeze again.
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@Airgun-hobbyist Thank you. I can't recall exactly where I was in the shot cycle. I think I was starting around 220 bar and finishing around 120-130 bar after 15 shots. I just don't recall where in the shot cycle this occurred last. I'll try to remember to write that info down if it occurs again. I think it may skip a shot at times as well.
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@Ezana4CE If it's skipping shots it doesn't sound like the magazine is rotating or is over-rotating sometimes. Pulling it apart and cleaning and lubing the inner workings along with pulling the magazine off the bearing for cleaning should fix that. I found bigger flecks of lead in the magazine bearing area, where an accumulation would become an issue with rotation eventually.
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@Airgun-hobbyist I'm hoping that isn't the case. I am not comfortable taking these semi-autos apart.
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I unfortunatly have a problem with my gk1. The opening valve started leaking bad, and now when i fill it the is constantly leaking through the barrel. It still shoots normaly and the magazine also functions normally, but it doesnt hold air for more than a few minutes.
Has anyone experienced this, and is there a solution for this?
Has anyone experienced this, and is there a solution for this?
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The first time sighting in the .25 cal GK1 I set the 25 gr JSB at 860 fps over the crony, low report, and shooting good for one mag. About three weeks later, I went out camping and was shooting the gun, and the report was louder and 1" high & low drop over 10 shots at 40 yards. I believe it was the K-curve. I didn't bring my crony with me on this trip either. I was planning on removing the power setting screw and adding a drop of VC-3 thread mate and resetting the fps and see if that takes care of the issue.
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