Hatsan Has anyone modded Hatsan Jet 2

[miksatx]

I'm trying to replace the tube on my Jet1 with a longer one and install a regulator. Finding I have to get creative w the tube. I haven't solved it yet. I supsect a lot of people like you w a longer barrel would want a longer single refulated tube that can be swapped in the field.

I'm tryi g for a 300 bar tube and a 250 bar regulator. May have to rebuild the Jet1 tube with a longer cylinder, if it will dissasemble for me

Takes extra cash to just buy parts and experiment now days. I'm getting lazy the older I get. I like messing around with unregulated stuff.

 

[miksatx]

Changed out the valve spring for a weaker one. Can now hit the side of a barn!
shot string 250b to 150b
Bullet : 7.9 gr Crosman

Shot count: 22
Low: 731
Hi: 833
Avg: 786
STD Dev: 27
Spread: 102

2024-01-23 06:27:15,772,FPS,10.5,FT Lbs,
2024-01-24 12:04:46,833,FPS,12.2,FT Lbs,
2024-01-24 12:05:24,821,FPS,11.8,FT Lbs,
2024-01-24 12:07:43,819,FPS,11.8,FT Lbs,
2024-01-24 12:07:54,821,FPS,11.8,FT Lbs,
2024-01-24 12:08:18,814,FPS,11.6,FT Lbs,
2024-01-24 12:08:31,793,FPS,11.0,FT Lbs,
2024-01-24 12:08:42,789,FPS,10.9,FT Lbs,
2024-01-24 12:10:33,807,FPS,11.4,FT Lbs,
2024-01-24 12:10:53,803,FPS,11.3,FT Lbs,
2024-01-24 12:11:06,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:18,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:28,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:39,786,FPS,10.9,FT Lbs,
2024-01-24 12:11:49,782,FPS,10.7,FT Lbs,
2024-01-24 12:11:59,763,FPS,10.2,FT Lbs,
2024-01-24 12:13:41,763,FPS,10.2,FT Lbs,
2024-01-24 12:14:49,770,FPS,10.4,FT Lbs,
2024-01-24 12:15:05,752,FPS,9.9,FT Lbs,
2024-01-24 12:15:44,745,FPS,9.7,FT Lbs,
2024-01-24 12:15:59,747,FPS,9.8,FT Lbs,
2024-01-24 12:18:16,731,FPS,9.4,FT Lbs,

 

[Isaactheshooter]

Installed a NP01 .177 Kral Barrel on mine. Can now hit the side of a barn!

View attachment 427936

Does this barrel fit directly in the gun or do you have to do any work to the barrel?

 

[miksatx]

Not a direct fit had to drill a new transfer port.

 

[WOW]

Added a Crosman el cheapo barrel to mine and needed to drill a new port AND make grooves for the two adjacent O rings as well as rework the bolt to have an O ring because the Jet uses one inside the barrel, not on the bolt like the Crosman. Worked like a charm, even with the smaller outer diameter of the Crosman barrel. Used an Oring set into the tip, where the suppressor adapter sat, which levels the barrel and centers it. So far so good.

 

[WOW]

Changed out the valve spring for a weaker one. Can now hit the side of a barn!
shot string 250b to 150b
Bullet : 7.9 gr Crosman

Shot count: 22
Low: 731
Hi: 833
Avg: 786
STD Dev: 27
Spread: 102

2024-01-23 06:27:15,772,FPS,10.5,FT Lbs,
2024-01-24 12:04:46,833,FPS,12.2,FT Lbs,
2024-01-24 12:05:24,821,FPS,11.8,FT Lbs,
2024-01-24 12:07:43,819,FPS,11.8,FT Lbs,
2024-01-24 12:07:54,821,FPS,11.8,FT Lbs,
2024-01-24 12:08:18,814,FPS,11.6,FT Lbs,
2024-01-24 12:08:31,793,FPS,11.0,FT Lbs,
2024-01-24 12:08:42,789,FPS,10.9,FT Lbs,
2024-01-24 12:10:33,807,FPS,11.4,FT Lbs,
2024-01-24 12:10:53,803,FPS,11.3,FT Lbs,
2024-01-24 12:11:06,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:18,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:28,791,FPS,11.0,FT Lbs,
2024-01-24 12:11:39,786,FPS,10.9,FT Lbs,
2024-01-24 12:11:49,782,FPS,10.7,FT Lbs,
2024-01-24 12:11:59,763,FPS,10.2,FT Lbs,
2024-01-24 12:13:41,763,FPS,10.2,FT Lbs,
2024-01-24 12:14:49,770,FPS,10.4,FT Lbs,
2024-01-24 12:15:05,752,FPS,9.9,FT Lbs,
2024-01-24 12:15:44,745,FPS,9.7,FT Lbs,
2024-01-24 12:15:59,747,FPS,9.8,FT Lbs,
2024-01-24 12:18:16,731,FPS,9.4,FT Lbs,

View attachment 428777

View attachment 428779

Thanks I'll prolly do this