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  1. W

    FX .250 42gr H&N only going 700 fps

    Ok thanks for your thorough. Maybe its time to change the rubber ball. Yesterday i turned the rubber ball sideways. So the flat side faces the valve housing. So i noticed a increase in fps. Maybe its time to change the rubber ball.
  2. W

    FX .250 42gr H&N only going 700 fps

    I am using the slug transfer port. Also the probe is pushing in my slug beyond the transfer port
  3. W

    FX .250 42gr H&N only going 700 fps

    Yes a decrease and a increase by changing the setting on the micro wheel is happening. Yes the rubber ball is installed but it dont even looks like a rubber ball anymore
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    FX .250 42gr H&N only going 700 fps

    So now i know a lot more. The fault is not the chrony or so. Its zhe barrel itself. I just measured the walter dominator where i knew its shooting at about 700fps. And it shoots at 700fps as my chrony said. So now the fault could be the barrel. Edit: Checked my o-rings they r fine Shooting...
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    FX .250 42gr H&N only going 700 fps

    yes true. as i know the the hammer and the reg should be in harmony to each other. the valve adjuster is just to close the valve when the slug exits the barrel so there are no turbulences behind the slug. as far as i know the tungsten is just the handle higher reg pressure easier then the...
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    FX .250 42gr H&N only going 700 fps

    I turned the rear reg back to 150bar. I will keep the tungsten hammer in. Cause i think those heavy slugs with 42gr need it. Sure i also think i am waisting air, but this is a story for the new chrony i just orderd. I also read something about the FX Pocket Chronograph. My thoughts about it are...
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    FX .250 42gr H&N only going 700 fps

    short update of mine. Just shot again a view rounds after i reassembled my gun. I think the pocket chrony from fx gives me wrong speeds. The shots fired dont feel like below 900fps. So i gonna buy a new one and test it. The Chrony is set to air power rifles in the settings. The settings of my...
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    FX .250 42gr H&N only going 700 fps

    I dont know the exact weight of the tungsten. i think for a .25 cal a 42gr slug is pretty heavy. as far as i know the 42gr slugs from h&n
  9. W

    FX .250 42gr H&N only going 700 fps

    I bought the 25 cal regularly. i wanted to shoot heavier slugs line the 42gr. So i took the tungsten hammer in the softer spring and the pinprobe
  10. W

    FX .250 42gr H&N only going 700 fps

    Yes the part 52 is correct installed just checkt it. also just whatched the video you sent i will give it maybe tomorrow a try and see what i get. thanks for the replies and i will let u know whats going on
  11. W

    FX .250 42gr H&N only going 700 fps

    700fps
  12. W

    FX .250 42gr H&N only going 700 fps

    These r the current settings i am running cant upload the fotos so macro is on 16 micro is on 3.6 and valve is at 12.85 mm open
  13. W

    FX .250 42gr H&N only going 700 fps

    Thanks for your reply. I will send the fotos later. And i also have to check if i have the weaker valve return spring built in.
  14. W

    FX .250 42gr H&N only going 700 fps

    Hello there, First of all nice to be here. Now the problem. I was shooting with my FX Impact M3 today. Trying out the 30gr from H&N in cal .250. Those were not exiting. So i switched back to the 42gr. same caliber. But what i recognized was that i only was shooting the 42gr with 700fps. The...