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Bad news what a difference 0.01 makes...

Discussion in 'Anything Airgun Related' started by nick2303, Mar 2, 2014.

  1. nick2303

    nick2303 Engaging Member

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    Went to P.A.R.C this mornin with my AA S510..

    I got some new pellets as i was getting odd fliers with the AA diablo's in 4.51, new ones were JSB exacts in 4.52..

    couldnt hit much with the 4.52's so put a string of 10 through the chrono.. 8.5 ft/lb...

    tried 10 of the 4.51's.........................................................................10.5 ft/lb...


    i would not have belived the difference if i had soon seen it with my own eyes...
     
  2. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    I've had similar in the past - AAs to JSBs gave me 1ftlb in my TX..

    Sounds like the rifle could do with a bit of TLC from the figures you're posting; assuming it's filled to the correct pressure of course ;)
     
  3. nick2303

    nick2303 Engaging Member

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    Got it used from a dealer.. only had it out half a dozen times so seeing what its doin and gettin used to it..

    I thought 10.5 was ok?
     
  4. mattyts

    mattyts Donator

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    10.5 is fine,I'm happy with 10.5 to 11.5 and yeah,head size makes as much difference as weight does with pellets
     
  5. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    All the deferent head sizes I have tried have all been with in 1ftlb of each other.
     
  6. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    10.5ftlb is fine if you're happy with it, however IMO it points to issues with the valve as detailed in my thread yer ;)
     
  7. nick2303

    nick2303 Engaging Member

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    i'm happy with 10.5ftlb..

    i have read most of your thread earlier with interest..

    only had the 510 a short time. so still enjoying the novelty of a pcp..

    works a bit short at the moment and wanting a filling cylinder, rowen single shot tray, chrono, a side focus high mag scope.. so i really dont wanna start messin with it without the chrono...
     
  8. mattyts

    mattyts Donator

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    Use Pontefracts chrono
     
  9. Akita177

    Akita177 The Absolute State of Britian podcast

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    Ive found AAs to be more efficient due to the more hollow taiper in the skirt of the pellet, though if i dont inspect the skirt for deformaty every shot i get fliers due to bent/deformed skirts.
    Some barrels preffer smaller head size others larger my old MK1 S200 was a laser gun with JSB 4.53.

    As far as i know AA aim make to guns to be around 10.5ftlb brand new of the shelf possibly creeping towards to 11ftlb roughly middle of the fill.
     
  10. nick2303

    nick2303 Engaging Member

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    used theirs this morning, but wouldnt want to tinker drive the 20 miles there, check it, drive home 20 miles, tweek somethin else, drive 20 miles again..

    each time doin this with a rifle that is potentailly illegal...

    rather be able to check straight away....
     

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