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gauge on rifles

Discussion in 'Anything Airgun Related' started by muddy, Feb 2, 2014.

  1. muddy

    muddy Well-Known Member

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    Location:
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    Hi ive read severl posts on filling which say go by gauge on bottle so does this mean the air gauge on guns is not accurate ??? Thanks
     
  2. mattyts

    mattyts Donator

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    Location:
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    Yeah they can be out by miles (our S400 gauge is out by 35 bar) so judge your pressure from the bottle only
     
  3. muddy

    muddy Well-Known Member

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    Msny thanks so if s400 is out 35bar does that mean when you check gauge on gun for refilling say it reads 100 yiur gun may be only at 60/70 bar not 100 on gauge ???
     
  4. stevemandm

    stevemandm Honorary Member

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    Location:
    in a distant galaxy, far far away ....... actually
    not neccesarily mate - our s400's are about 25-35 bar out on a full fill, and nearly spot on when down at 100 bar, so making reading more tricky and inaccurate, as the pressure discrepency is not constant down the range.
    the gauges on bottles are better made and manufactured to tighter tolerances, ultimately making them more accurate.
    saying that tho, we have a couple of friends with weihrauchs, who's gauges are spot on.
    what rifle do you have ?
     
  5. muddy

    muddy Well-Known Member

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    Location:
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    Hi thank i have aas410f
     
  6. cloverleaf

    cloverleaf Super Moderator Staff Member Mod/Admin

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    Yeah, gauges on most guns (Weihrauch excepted) are a bit crap - low resolution and not particularly accurate. Definitely best to fill using the gauge on the bottle/pump and take a set number of shots before refilling. The usefulness of most gun gauges extends as far as illustrating if the rifle has air in it or not :)
     
  7. stevemandm

    stevemandm Honorary Member

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    Location:
    in a distant galaxy, far far away ....... actually
    unless you have a chrono to acertain the rifles sweet spot, then fill to 170 bar (reading from the fill bottles gauge) and refill at 110 bar (from the rifles gauge).
    we fill to 170 bar, and count shots down
     
  8. muddy

    muddy Well-Known Member

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    Location:
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    Many thanks
     
  9. Clubshot

    Clubshot Clubshot

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    Location:
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    I fill many PCP's @ Club and always go by Air bottle Gauge

    Can not believe the differences on Some Gun Gauges

    BOB/R
     
  10. SteveO

    SteveO Top Poster

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    To throw a spanner in the works, my air bottle gauge is out by 20 bar, Compared to a much more expensive and accurate filling station gauge, My 3 litre tank has to be filled to 325 bar to get a definite 300 bar fill after cooling.

    I was getting short changed for over 6 months before I realised, my guy knows the score and tops up that bit extra.
     
  11. Ruddles

    Ruddles Engaging Member

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    Location:
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    HW100S owner here. I have a gauge on the filling whip, a standalone DIN-fitting gauge which was calibrated recently and gauges on my diving regulators. They all show the same readings throughout the 0-230 bar range and the gauge on my Weihrauch agrees spot on as well.

    All very reassuring for someone who's borderline OCD!
     
  12. yorkshireshoot

    yorkshireshoot Posting Addict

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    Location:
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    My s410 f must be one of the good uns as gauge on bottle and gun both read same , not to say that they are both spot on as said already bottle gauges can be out , but I seem to get the right amount of shots per fill so can't be much in it .
     

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