A.A. M.P.R. ( FT ) spec?

Discussion in 'General Airgun Chat' started by el tel, Feb 1, 2011.

  1. el tel

    el tel New Member

    Joined:
    May 30, 2010
    Messages:
    47
    Location:
    march,cambs
    Hi Guys,
    Fill this gun to 190 bar.
    How many full power shots at 770 fps ?
    Pellets JSB exact 4.52
    Does it require a few shots from filling to settle down ?.
    Cheers,
    Tel
     
  2. Artfull-Bodger

    Artfull-Bodger Member

    Joined:
    Feb 7, 2010
    Messages:
    316
    Location:
    Llantrisant
    my sons preferred 170bar when we bought it and it did about 50 shots from that at 770fps with 8.4's
    a quick strip down and polish of the hammer rail and clean up and light lube (it was quite dirty)the transfer port screw was afjusted to compensate as it was slightly higher after and we now get 60 shots from 780fps to 778fps peaking at 791fps on the 190 bar fill, I can only assume the dirty internals were causing drag on the hammer!
     

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