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Pp700 Tech Thread

Discussion in 'Technical' started by Lostkiwi, Apr 3, 2021.

  1. sagalout

    sagalout What a plinker!

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    They're only £2.99 for 500, try some more expensive pellets and that spread might tighten up a bit! :laff::laff:
     
  2. shadowryder

    shadowryder "whistlin' Dixie"

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    @hmangphilly ,
    mine will be winging its way to you soon for its new reg,,,,
    J..
     
    Lostkiwi likes this.
  3. Lostkiwi

    Lostkiwi Tomorrow will be a better day.

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    It's good isn't it! :thumb:
     
  4. Lostkiwi

    Lostkiwi Tomorrow will be a better day.

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    I know! Daft isn't it!!! :laff:
     
    sagalout likes this.
  5. shadowryder

    shadowryder "whistlin' Dixie"

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    loving the gun,
    getting the barrel done and then Phil is gonna reg it n set it up for me.
     
  6. shadowryder

    shadowryder "whistlin' Dixie"

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    BARGIN MATE!!!!!!!
    LMAO!!!
     
    sagalout likes this.
  7. Lostkiwi

    Lostkiwi Tomorrow will be a better day.

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    It'll be an absolute cracker by the time he's done. The man's not of this world, he's a wizard!
     
    sagalout likes this.
  8. shadowryder

    shadowryder "whistlin' Dixie"

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    I know,Wizard is the word,
    he has done stuff for me previously.
    Careful he will never get his head through the shed door LOL!!!!
     
  9. sagalout

    sagalout What a plinker!

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    He is and such a nice bloke with it. You ain't so bad yourself SD=1, pretty damned amazing.
     
  10. hmangphilly

    hmangphilly Big Poster

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    Don't forget good looking
     
    Aston_Shooter and Lostkiwi like this.
  11. sagalout

    sagalout What a plinker!

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    I thought that was stretching credibility a bit to far
     
  12. stanimal

    stanimal Donator

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    Fantastic thread so far,well done chaps :thumb: should be made a sticky i reckon!

    I need to do the mod to my stock to stop it moving,could anyone tell me the size of the screws i'll need please :D
     
  13. Lostkiwi

    Lostkiwi Tomorrow will be a better day.

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    When I got my stock it came with two additional screws. I used them.
    They are the same size as the ones that hold the stock to the gun and the hammer guide plates if you aren't using the stock.
    From memory M3.
     
    stanimal likes this.
  14. stanimal

    stanimal Donator

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    Cheers mate :thumb:
     
    Lostkiwi likes this.
  15. para02

    para02 Engaging Member

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    My .177 has the 3.2mm breech hole with the top grub screw flush with the top of the breech as supplied and consistency was very erratic , after reading a tuning guide on a us forum ,gateway to airguns I think , they suggested removing the grub screw and refitting a longer pointed one from a scope arrestor then screwing it in so point covers 3.2mm hole with the grub screw thread just visible, I tried this and variation between shots dropped massively to 6-8fps, originally 20-30fps across 35 shots
     
    sagalout, shadowryder and Lostkiwi like this.
  16. Peddy

    Peddy Busy Member

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    From what I've read am I right in thinking if you wanted to run the pistol unregulated you have to adjust the reg fully in? I still dont understand the washers inside the standard reg and their purpose.
     
  17. Lostkiwi

    Lostkiwi Tomorrow will be a better day.

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    It's not designed to run unregulated and will make it illegal.
    The 'washers' in the regulator are springs (if you look carefully you'll see they aren't flat). They're known as a Belville stack.
    https://en.m.wikipedia.org/wiki/Belleville_washer
     
  18. hmangphilly

    hmangphilly Big Poster

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    The washers in the std reg push a piston which , in turn pushes a poppet valve off it's seat and allows supply air to enter the piston chamber.

    when pressure is sufficient , the incoming air pressure will push the piston the opposite direction , against the springs ,and allow the poppet to close against the seat and cut off supply air . The piston chamber is then left at the set pressure a port connects the piston chamber to the plenum

    this principle except hw use a ball instead of a poppet

    hw100 reg.jpg
     
    Lostkiwi likes this.
  19. M0XOM

    M0XOM Rob

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    Mine is Huma regulated and I bypassed the internal regulator by removing the valve pin and the white valve seat completely then fitting an O ring in place of the valve seat to seal the air cylinder against.
     
    Kj1 and ninja9 like this.
  20. M0XOM

    M0XOM Rob

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    I’m not sure it would even fire without a regulator as you wouldn’t be able to open the firing valve against the cylinder pressure. However, if you managed to bleed the fill pressure down, as you rightly say, it would be then in illegal firearm territory.
     

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