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chrono test

Discussion in 'Anything Airgun Related' started by mikey, Sep 19, 2014.

  1. mikey

    mikey Pro Poster

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    I thought I would do a chrono test using my hw100sk in .177 with a newly fitted a@m cyclinder to see how shots per fill I could get.i filled to 200 bar and was down to 100 bar after the testing.has you can see from the results I got 74 shots before it started to drop off,shot 48 and 49 must have been bad pellets.i used jsb exact 4.52 straight from the tin.what are your thoughts on the results
    http://i1022.photobucket.com/albums/af343/yorkshireman59/001_zps7b04936c.jpg
     
  2. busanga

    busanga Posting Addict

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    How did you manage to get those results with your gun in that condition :D
     
  3. mikey

    mikey Pro Poster

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    in what condition lol
     
  4. busanga

    busanga Posting Addict

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    Bits and pieces
     
  5. mikey

    mikey Pro Poster

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    its not in bits and pieces lol
     
  6. busanga

    busanga Posting Addict

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    Would be easier if you could put results in a graph, with some stats. Max spread, standard deviation etc. Lot of numbers there to look at.
     
  7. mikey

    mikey Pro Poster

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    ive no idea how to do a graph.
    I have these if they help
    11.65ftlbs
    11.43
    10.77
    790 fps
    783
    740
     
  8. mikey

    mikey Pro Poster

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    the 740 should have been 760 fps
     
  9. mattyts

    mattyts Donator

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    Could you open up an excel spreadsheet and plot all the values in a table? 2 columns,shot number and FPS,I can do the stats and graphs if you like.
     
  10. mikey

    mikey Pro Poster

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    have never done a spreadsheet matt and wouldn't know where to start and has to plot the values again not got a clue
     
  11. mark112

    mark112 Engaging Member

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    Like this:-

    View attachment 103834


    Orange horizontals are 8fps apart. Been quicker if you had posted the numbers up as a text file though :). Gave me something while the wife gets ready for a night with me on the p*ss. Best behave myself tonight.
     
  12. mark112

    mark112 Engaging Member

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    Shows what happens when you overfill one ;):eek:
     
  13. mattyts

    mattyts Donator

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    How come you've marked the pressure on the axis?
     
  14. mikey

    mikey Pro Poster

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    how do I post has a text file
     
  15. mark112

    mark112 Engaging Member

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    Built into the spreadsheet model I did a while ago. Used for rifles like the S4** series so I know the best pressure level to fill to (some fill to full and then waste 20 shots or so but spreadsheet tells me to fill to 150 say). This graph 'feature' is wasted on the HW100 as it is regulated so doesn't show a pronounced curve. X-scale also shows shot number for ref. Pressure drop on my rifles is fairly linear over the full shot string.

    Mark. (now off out at last!)
     
  16. walker

    walker Busy Member

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    no need for a graph to be honest I can pull all the information easy enough from the piece of paper mikey provided. very good readings aswell mate!
    I th
     
  17. Hunter 001

    Hunter 001 Donator

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    We'll done Mikey. You got 7 fps spread over 70 shot which is excellent. Agree walker, in this case there's is no need for graph as it is very obvious that your gun is very consistence.
    I see you are back now to HW100. I still have my full length HW100s and HW100 KS that I bought from somebody you may know. I think hw100 can be boring sometimes because they are very accurate, consistence and you hit whatever you aim at with ease. So when I got bored I tried another more expensive rifles, then spend even more money tuning and customised them, changing barrel and sometimes caliber but with no exception they are failed to match my HW100 accuracy.
     

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