Do I have a defective hatsan flashpup qe .22

[joshuacolvey]

I started out shorting this several times at night last week and a couple during the day. Yesterday I poop several time and the shot some more sighting in the scope. I got done and noticed the rifle was very loud when finished. So I started to take steps with help to figure out the issue. 
took it apart and all o rings and seals where good so I put it back together and filled back with air. 


did a test with phone and dB meter app beside the rifle muzzle about 8-10 ft and got around 96 dB. 
I then shot from 200-100 bar through a chronograph and anything below about 750 or so is very quite. Once you break that and hit 760 about and above it’s like a 22 powder rifle with the crack and echo. 


so was shooting about 930 and backed off the happier to shot around 730 but did this when it was at about 150 bar so this is the fluctuation in the numbers



anyone have any ideas what the issue may be all baffles look great as well in barrels

here are a few screenshots of the chrono and the sound test. 


also a video that’s 22 seconds long and you can hear the crack. This is the next 2 shots after my last ones on chronic they should be in the 780 range. 

link to video. 


https://share.icloud.com/photos/0GLFFjWVh2sCWb7MTxiWFkF8g#Jonesboro

 

[Seth0764]

In the video the wind chimes sound louder than the shot. Try shooting in an open area, You may be hearing echo off the fence.

You could also try putting a tissue over the breach then fire the rifle. If the tissue moves it may be the breach seal.

 

[joshuacolvey]

In the video the wind chimes sound louder than the shot. Try shooting in an open area, You may be hearing echo off the fence.

You could also try putting a tissue over the breach then fire the rifle. If the tissue moves it may be the breach seal.

this is from about 15 ft behind the phone taking a reading. This video is also at less than 800fps. When it drops to 750 it’s extremely quite in the exact same shooting situation. 


after watching several more videos I found some videos as well as a guy who sent me a video of him shooting 930 FPS and it’s extremely whiter than mine. Also the video is extremely quite as well. 


I think I listed the video I found on YouTube but here it is either way. Skip to about 5:30 mark
https://youtu.be/R10DsxpImTw



so here is another video as you can hear the crack. This is out where the metal building is the only thing next to me. 
https://share.icloud.com/photos/0luaSJGIkeDkdXfWqYBCcCLjw#Jonesboro

https://share.icloud.com/photos/0gApRz57ICk4INKgB512GlsAw#Jonesboro



I took rifle apart again to check all orings and they are in perfect shape. I just tried the tissue trick and no movement.