Huben Hammerless K1

Hi to all, today was range day and I have some new results on the .217 batch of NSA ammo to test on the Huben.
As a lot of you might saw on the video I made a few days ago Nick send me 4 types of slugs these are the differences (see the pics).
- 2 Hollow Point in 27 and 33 grains 
- 2 Round Nose in 27 and 33 grains
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And this are the pics of the groups at 50 meters, I'll post more details tomorrow since it's almost 1 AM here in Chile and have to wake up early for work!, probably I'll upload another video on my channel explaining everything.
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More updates and data soon, see ya.
 
Hola a todos,les hago un pregunta tengo un huben y me empezo a perder aire por el manometro del regulador,le cambie el oring y menos pero sigue perdiendo,no se que hacer¡¡¡¡,veo que es un sistema en el que el manometro al no tener rosca no se lo puede ajustar como para que no siga perdiendo.Espero me puedan ayudar,desde ya muchas gracias
 
Translation for Carverter question: Hello everyone, I ask you a question I have a hub and I began to lose air through the regulator manometer, I changed the oring and less but still losing, I do not know what to do!, I see that it is a system in which the manometer without having a thread can not be adjusted so that it does not continue to lose. I hope you can help me, thank you very much
 
Hi again guys, sorry for taking so long :( !!! But the new video with updates on the NSA ammo tests check it out here :D :


- Gregor how are you ? do you had some time to test new things on the Huben or it's full with snow still.... let us know bye bye
- Hi Bigalex, what happened with your trigger assembly? any news on the silencer mod and 3D prints?
Greeting and best regards to all
Alejandro 
 
 Alejandro thanks for posting. From your video here’s list of velocities:

975, 943, 960, 962, 962 ft/sec

this spread of velocities ideally should give you about 0.30” vertical group (per ChairGun or StrelokPro) st 50 yards. Looking at almost closed shooting range - wind can be ignored. 

So air system can do 0.30” group at 50yards. Your “all over” result is caused by barrel and/or projectile. 

looking at pics NSA bullets have rear biased center of gravity. Some of target holes do not look round which may indicate keyholing caused by bullets loosing stability and wobble.





 
Hi.
I am great :) Been able to start shooting as the snow went down (finally)... I have been testing the Huben swagged slugs. I can get about 2 Moa accuracy with v2 stock configuration of K1. With V2 and custom barrel, I get slightly better results. Not as good as with the slight form Huben but still not that bad. I am working on something special with two friends that is showing a lot of potential. it should be ready shortly... :) there will be a video...
I have also started to work on videos form my channel generally (not only Huben, also other products / topics). I really have a lot material, so hopefully, videos will be coming out more regularly this year if I have enough free time for them :)
 
Hi! Alejandroo,
I disassembled the valve incorrectly and made too much pressure as a result of the triger mechanism hit pieces of metal. To parse the mechanism, it is necessary to drill a 1 mm hole in the plastic plugs in them and screw in the screws. I also combined the barrel and magazine, this helped Gregor. There was also a problem in blowing air from under the maga
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zine
 
Hi again folks !!! 
I'm getting better from my surgery so I thought...............why not post updates on the Huben thread.......so here we go:
First of all terribly sorry of what happened to you Bigalex, hope you find the spare parts to get the Huben working again.

Second: I'll show you some different arrangements that I've tried on the belleville washers on the regulator (I counted 30 in my rifle) and what are my findings so you can replicate them and see if there's any change.
Understanding my regulator diagram:
This character is the head of the piston, this ))(( the belleville washers and this == the shaft's end of the piston (hope I make myself clear).

Original Setup (source, Gregor's videos) : )))((()))((()))((()))((()))(((=
Gregor's setup: (())(())(())(())(())(())(())((=
My variation that seem to work is : )))(())(())(())((()))((()))(((= please give this one a try and let me know of your results 

I also tried 6 other variants but none of them worked well I even tried leaving 2 and 4 washers out without any luck.
I found (at least that's what I think) that with my variant the gauge needle stays in place more consistently than the others.

Let me know your results and update.

Third and last one for now:
This is the full list of pellets that I've used and test on my rifle, best results in bold.
- JSB Heavy, 18.13gr
- JSB Monster, 25.39gr
- JSB Redesigned Monster, 25.39gr (recommended by Gregor)
- JSB Beast, 34gr
- JSB Ultra shock, 25.39gr
- H&N Barracuda, 21.14gr
- H&N Barracuda Hunter, 18.21gr
- H&N Barracuda Hunter Extreme 18.52gr
- H&N Barracuda Power, 21.14gr
- H&N Terminator, 16.36gr
- H&N Field Target Trophy Power Copper-Plated, 14.66gr
- H&N Sniper Magnum, 18gr- H&N Silver Point, 17.13gr
- H&N Rabbit Magnum Power Copper-Plated, 25.77gr
- H&N Rabbit Magnum, 25.62gr- H&N Piledriver, 30gr
- Crosman Premier Hollowpoint, 14.3gr
- Crosman Premier Piranha, 14.39gr
- Crosman Destroyer, 14.3gr
- Skenco NewBoy Senior, 28.6gr
- Eun Jin, 28.4gr
- Gamo G-Buffalo Power, 27.8gr
- BSA Red Star, 18.21gr
- Hatsan Destroyer Point, 28gr
- Walther Maximathor, 21.14gr


Alejandro
 
Olá, boa noite a todos, com um cumprimento particular ao Alejandro 
Espero que tenhas melhoras rápidas.Os teus posts são muinto interessantes.
Quando a minha Huben k-1 regressar de "balistas" na Républica Checa onde foi comprada, vou testar a tua configuração das anilhas de compressão do regulador (Washer's). Quanto ao teu teste de projécteis, concordo quase em tudo, se bem que tive optimos resultados também com os H&N Baracuda Match 21,...gr.. Os JSB Beast para mim são os melhores, os que melhor resultado têm tido no meu cano, sem aumentar a pressão acima de 155bar. Bons mesmos são os Huben, mas mais dificeis de encontrar. Comprei várias caixas na Holanda. O site é "airgunheaven.com.
Carlos Domingues