Hatsan Bully Diagram

I asked Dennis at IndianaAirguns.com to get a diagram for the Hatsan Bully. As usual, he came through for me. To enlarge the image, right click and select Open Image in New Tab

Hatsan Bully Diagram
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"Rich7777"
"PelletPusher"Rich, how does the power adjuster knob function in the Bully? Does it change the port size, hammer spring, or something else?

The only power adjustment on mine (25 cal) is the hammer spring tension screw and I have to remove the stock to get at it. Can you post a photo of what you're looking at?
Thanks,
Rich

Not sure if I can post a video because I am new on here, but here is a Turkish language overview. You can see the power adjuster at 1:33 mark on the video.

 
Trigger feels like it’s set at about 18 pounds, today I finaly got to shoot it and I thought something was wrong with the safety like it wouldn’t come off but then I realized I needed to hook the trigger up to my bumper and use the truck to get it to fire, I’m not kidding I’ve owned several Hatsan airguns and this is 10 times worse then any trigger, my brother laughed because I had to pull so hard I lifted the bully up about 3 inches off the table because I was pulling so hard, it’s like they put the adjustment screw all the way in or left a big burr on the face of the trigger, either way I need to read up on how to adjust the trigger or take emery cloth after the trigger and smooth it out or send it back.......I’ll read up and see if there is a adjustment I can do without voiding warranty or I’ll send it back......I’m not kidding about this either it totally took me by surprise.