JKhan Owners

[amoxom]

I am liking my .22 so far in the short time I have owned it. I am putting a regulator in it, and a reduced hammer spring. I also successfully put some baffles into the short space between the barrel end and the shroud cap. I used some small hair curlers wrapped in felt. I used a cut down one first then a washer, then another full curler wrapped in felt and the end cap. Not tried it yet, but hope to tomorrow, when the house is empty. I will do a before and after using the db meter I have on my iPhone.... Again too when I add my Weihrauch moderator.

 

[NoMan]

I just picked up the .25 rifle version from AASkiff <great to deal with. Would like to quiet the ping and bark. Also having problems with one of the magazines jamming as the pellets are backing out under recoil. Love the gun, it's a real hammer and am confident these issues have easy solutions.

 

[peterdulux]

Had a good chat with Randy from R&L today. He sells his guns tuned. He regulates them as well.

I'll be dealing with him as AASkiff offers no warranty of any kind.

 

[amoxom]

Call these guys if you have issues with the magazines jamming, they will machine another groove and add in an extra band... https://sites.google.com/site/saddlemountaingunsmith/home/evanix-rainstorm-and-blizzard Plus they can also do suppression with a longer shroud, or shroud extension and baffles.

 

[amoxom]

"amoxom"Call these guys if you have issues with the magazines jamming, they will machine another groove and add in an extra band... https://sites.google.com/site/saddlemountaingunsmith/home/evanix-rainstorm-and-blizzard Plus they can also do suppression with a longer shroud, or shroud extension and baffles.

 

[peterdulux]

Amoxom, do you think that mod will work for these mags? I know they are a little different than the Evanix, but I was thinking the same thing.

 

[NoMan]

Thanks for the inputs guys. I'm a big fan of Randy and RL but AASkiff had a deal that was hard to pass up for a first Korean gun. I don't consider my issues to be a big deal as I have had bigger problems with guns at three times the price.

 

[peterdulux]

Not knocking his prices by any means, just can't offer any follow up.

 

[AASkiff]

"NoMan"I just picked up the .25 rifle version from AASkiff <great to deal with. Would like to quiet the ping and bark. Also having problems with one of the magazines jamming as the pellets are backing out under recoil. Love the gun, it's a real hammer and am confident these issues have easy solutions.

From what I was told they test these rifles with Eunjins, because that is what they have on hand. So longer skirted pellets cycle no problem. Shorter skirted pellets should be seated deeper with a pen.

 

[AASkiff]

"peterdulux"Had a good chat with Randy from R&L today. He sells his guns tuned. He regulates them as well.

I'll be dealing with him as AASkiff offers no warranty of any kind.

And what will the totall cost would be of such a Jkhan? = tо Daystate Huntsman or S510? 

As is, these rifles come well adjusted from a factory. Hyundai machinery is top notch. And they test them well based on general air rifle building knowledge they know.

It is a good product if sold at $600-700 price range. Tunning would make them better as any pcp, but depends what is actually done. Just putting the regulator does not do anything. And for .25 cal especially. All parameters of the gun will have to be readjusted after reg is installed. So it is better to do this at the factory.

 

[AASkiff]

"peterdulux"Amoxom, do you think that mod will work for these mags? I know they are a little different than the Evanix, but I was thinking the same thing.

I would send few tins of JSB pellets to Jkhan so they can readjust their machinery. 

Jkhan pellets are the same as Eunjin brand. On the other hand since these rifles put out over 50fpe in .25 cal maybe it is best to shoot Kodiaks, JSB Monsters, and Eunjins. They may even handle custom ammo for those guys that do power mods. So maybe there is a plus to heaving a longer mags.

 

[NRN2015]

I have a Jkhan Noblesse Bullpup in .25 caliber (6.35mm) and it is regulated shooting JSB kings (25.4 grain) pellets at 860 fps for nearly 40 shots using the HUMA regulator. I had to mess with the hammer weight and spring tension to find the right combo. Unfortunately the factory springs supplied where to powerful for gun when the reg was installed...it was wasting lots of air....once I found the right combination then it performed well. 80 yard squirrel heads are no problem. again it was critical for the hammer spring tension and hammer weight. I will have to measure and do some more testing to see if I can find an aftermarket spring from maybe Mcmaster Carr or someplace. The current spring I have is a factory spring cut shorter (around 1.5 coils) to achieve around 36 shots...

I truly believe this beast can be tamed to a wonderful power and shot count if the correct parameters are given when introducing a regulator to the system.

 

[Rami939]

nt.

 

[billydjann]

The more I read the more I think I want one of these...... been watching a long time....
Just not sure until I hear more on this bullpup...... .25 would be my choice....

 

[Mr.Gadgets]

"NRN2015"...once I found the right combination then it performed well. 80 yard squirrel heads are no problem. again it was critical for the hammer spring tension and hammer weight.

NRN,
Thanks for the great information. I understand hammer spring tension, but how did you adjust the Hammer Weight?

 

[Rami939]

nt.

 

[amoxom]

I ordered a HuMa regulator and a new shroud cap with the 1/2" UNF fitting as my Noblesse only had the Airstripper version that is still hellish loud. There is approximately 3.5" of space after the barrel crown to the tip of the shroud. I will remove the Airstripper parts and make two small chambers using nylon washers and two narrow hair curlers wrapped in felt. This should quieten down the report prior to a regular moderator being installed. 

 

[ASP]

Actually it was more or less the the spring tension adjustment...The current hammer weight is standard...this is my fault sorry.....I do think the hammer is too heavy though.

But I will say that if we can somehow adjust the hammer weight to a lighter one, I think we can might be able to achieve better results....

 

[Swing360]

I need to get a lighter spring in mine as it still whips the 18.13 JSB's around a little wild at times. I ALMOST had enough courage to try and dismantle my gun yesterday and then quit right before I got the first screw all the way out. LOL. 

I may just send it to Randy and have him work it over. Although I would prefer Will work on it, his plate is usually quite full

 

[NMshooter]

You might want to practice on your P-rod if you still have it. Watch a few videos on U-tube about dismantling an Evanix as they are suppose to be similar. Generally changing or adjusting the hammer spring is rather simple. Just have to count your turns as you are going out and going in to get to the desired position. I have had my Falcons and Marauder apart and safely got them back together. I was lucky to have my friend Van initially to oversee but it should not be hard. Van always recommends to video as you take it apart so if you get lost you can go back to the video. For my Falcons, I did not have to empty the air cylinder to get to the spring, literally one grub screw, end cap, and the "spring cup" to get to the spring. Make sure it is the same for the Krosa before you begin.
Best of luck

Doc

PS I didn't know what a pcp was a little over a year ago!