Huben pistol.
- Thread starter Nomadic Pirate 66
- Start date
@Airgun-hobbyist I got it. That’s what @Barri_40 told me. The thing that was a little strange was that with the elevation adjustment screw, it’s hard to know how close I am to backing it all the way out. It’s also strange to not really be able to document the adjustments that I make to the rear sight. There are windage markings in the top of the sight, but I haven’t noticed anything moving to align with the markings. I also don’t know if these screws will move in time once loosened up a bit from adjustment. This is totally different from adjusting a scope.
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I saw a response and was wondering if you had gotten the answer from that member. There's a lot of members who post in their native languages and because I don't have the translator function on I don't know what they said.
The horizontal blade adjuster was a bit of a trial and error session for me too. As you alluded to, probably due to the fact we're so used to messing around with scope dials with markings.
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@Airgun-hobbyist But my shots moved. My shooting still needs a lot of work, but my best group about maybe 6-7 shots within the large ring shooting offhand and untethered. I may post the embarrassing target in the groups photo thread. It’s tough not seeing the holes without walking closer to the target.
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@Hapo for the elevation adjustment, you can loosen it tightens the Allen head screw that holds the rear sight in place. As it loosens you can press down on the rear sight and feel it spring back up as you lease pressure with your finger. The opposite will occur as you tighten this screw down.
To clean the barrel take a look at @weevil’s method in the following two threads.
See post #42 here https://www.airgunnation.com/thread...-journey-to-a-diy-mini-carbine.1307076/page-3
@weevil’s thread on cleaning the GK1 barrel here
Huben K1 barrel cleaner (edit: works for .22 and .25)
Just sharing a hack devised to clean the K1 barrel quickly and easily. My friend and owner of a 25 confessed that he had never cleaned his barrel (3 years and many thousand shots!) because he didn’t want to get into any disassembly. We set about crafting a device to clean it that doesn’t...
www.airgunnation.com I also added these links to the first list in the “All Things Huben GK1 - Master Thread”
How many of you all cleaned your GK1 barrel before shooting? If you shot first and cleaned later, did you notice any difference in how your gun shot?
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I am the only owner of the first GK-1 sold in the USA. #11. I have just passed the 30,000 pellet through. The accuracy is still the same. I have never cleaned the barrel. This is only observation. Your mileage may vary.@Hapo for the elevation adjustment, you can loosen it tightens the alley head screw that holds the rear sight in place. As it loosens you can press down on the rear sight and feel it spring back up as you lease pressure with your finger. The opposite will occur as you tighten this screw down.
To clean the barrel take a look at @weevil’s method in the following two threads.
See post #42 here https://www.airgunnation.com/thread...-journey-to-a-diy-mini-carbine.1307076/page-3
@weevil’s thread on cleaning the GK1 barrel here
Huben K1 barrel cleaner (edit: works for .22 and .25)
Just sharing a hack devised to clean the K1 barrel quickly and easily. My friend and owner of a 25 confessed that he had never cleaned his barrel (3 years and many thousand shots!) because he didn’t want to get into any disassembly. We set about crafting a device to clean it that doesn’t...
I also added these links to the first list in the “All Things Huben GK1 - Master Thread”
How many of you all cleaned your GK1 barrel before shooting? If you shot first and cleaned later, did you notice any difference in how your gun shot?
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Did you guys tried the Altaros ATP slugs? I'm sure I read about some people using it. But it's very tight to load it in the GK1. I'm afraid it would damage it.
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@Ach3r0n Try .254 or .253 slugs. Those diameters seem to load better in my mag. Although .254 and .255 are a bit snug, with a seating tool they can be situated within the mag appropriately. .255 will take some force, but I saw no damage to the gun from shooting them, no jams. You may have to size down your slugs. Have you measured the actual diameter of those Altaros slugs?
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No. I don't even know how should I do it, I mean I don't have the tool for that. But thanks for the info & advice.
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The tools needed are calipers or a micrometer. A micrometer would be better in my opinion. It looks like this when you measure a projectile.
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Thanks.
I saw this guy shooting it (if this is the same slug). So, I ordered.
On their website (Altaros) I don't see the GK1 as a recommended choice for this slug. Only K1. Different magazine? Probably I should ask them.
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@Ach3r0n You may want to take a look at this thread as well
https://www.airgunnation.com/threads/gk1-25-tuning-for-altaros-jsb-charts-and-data.1305578/
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Sounds promising. But it was super tight? To load them I had to push in hard with my thumb.
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Anybody know what’s going on here?
GK1 (v1) .22. Shooting JTS 20.73 grain. Accuracy is good (testing at 30m for now). But the speed curve (up and down) is kinda weird.
A while back the shot strings where steady with less fluctuation
GK1 (v1) .22. Shooting JTS 20.73 grain. Accuracy is good (testing at 30m for now). But the speed curve (up and down) is kinda weird.
A while back the shot strings where steady with less fluctuation
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@PCPFanNL Not a clue. Is anyone else shooting their GK1 in .22 down to 100 bar? That seems like it's pushing things. How do those pellets fit into your magazine? They aren't heavy pellets. Does your GK1 do the same thing with heavier pellets? How about if you adjust the power screw? How long have you noticed your GK1 acting this way?
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@Ezana4CE - My GK1 is in .22 but it is a V3 and I am shooting the JSB Jumbo Monster Redesigned Deep @ 25.39g and I never shoot below about 1600 PSI and get almost 3 magazines out of it before the the speed drops off. I have it zeroed to 30 yards. My longest DRT shot is now 84 yards! My gun loves pellets.
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I think Gregory mentioned not going below 100 bar, so that’s what I’m guided by
The JTS 20.73 fit snug, I seat them, and they ‘click’ into place.
I’ll have a try tomorrow with other (heavier) pellets to check. Would be weird if the pellets are causing this right?
This is the first time I notice this FPS changing. I haven’t shot the GK1 for a while, but that shouldn’t be the issues either I guess..
Very curious about this
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