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Thread: Wind Tests

  1. #1
    Inactive Member

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    Default Wind Tests

    Okay got round to doing a wind test with three different rifles yesterday.

    Going to post this in seperate posts as I'm getting confused and I think it'll be easier to follow each rifle in a different post.

    Info:
    Kit:


    S400 Carbine @ 12 ft/lbs
    4-12x44AO Hawke Airmax
    Accupells and AA fields 4.52 (Accu's washed and both types lubed)

    CZ 200 @ 12 ft/lbs
    3-9
    Accupells and Ultratecs (Non washed and non lubed)

    HW100 mk1 @ 12 ft/lbs
    8.5-34x44 Hawke Sidewinder
    Accupells and AA fields 4.52 (Accu's washed and both types lubed)

    We carried out the test over a distance of 25m exactly, all rifles were shot from benchrest, with two fans covering approx 14 meters of the last distance to the target. No wind meter available and after some discussion (arguement), we came to the conclusion the wind was to be blowing at around 20 km/h.

    Three sets of shots were carried out with the two pellets types as mentioned above :-

    A control group of 3 shots with no wind.
    A group of 3 shots with one fan blowing.
    A group of 3 shots with two fans blowing.

    SF = Single fan
    DF = Double fan.

    ...

  2. #2
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    Wind Direction for all shots was @ 90 degrees to the firing line, travelling from left to right.

    S400:


    Target 1 and 4 are control groups.
    Target 2 and 5 are SF groups.

    Conclusion:
    Accupells are known not to group well in this rifle. However as can be seen the Accu's were not really effected by the wind if working from the center of the group. AA's were blown off course appox 3mm to the right.




    Target 1 and 4 are DF groups.

    Conclusion:
    Accu's still not effected by the wind, and now appear to be grouping better.
    AA's blown off course by appox 5mm now.


    ...

  3. #3
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    CZ 200



    Target 1 and 4 are control groups.


    Conclusion:
    Control group, Ultra's seem have the occasional flyer.



    Target 1 and 4 are SF groups
    Target 2 and 5 are DF groups
    *Note Target 2 is Accu's not AA as in the pic.

    Conclusion:
    SF = Accu's and Ultra's quite happy with the medium wind.
    DF = Accu's blown off course approx 7mm. Ultra's not happy with the higher wind at all, although approx 5mm off course.

    ...

  4. #4
    Inactive Member

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    verty intrerestring...........................

  5. #5
    Inactive Member

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    i havenrt rteally trested accu's in my 400 yetr butr i have 10 tins of aa to get through befor i need to buy any more pellets

  6. #6
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    HW 100


    Target 1 and 4 are control groups.
    Target 2 and 5 are SF groups.

    Conclusion:
    AA's grouping better than Accu's in the control groups.
    SF = AA groups opening up slightly over the Accu's. Accu's blown off course by approx 2mm to the right.
    NOTE!!!!: Notice AA's grouping climbing INTO the wind by approx 5mm! !amazed



    Target 1 and 4 are DF groups.

    Conclusion:
    AA's opening up ever so slightly with the heavier wind. Accu's blown off course by approx 5mm but grouping better.

    ...

  7. #7
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    Some added thoughts and info....

    Barrells were not cleaned inbetween pellet changes, so don't take the groupings to heart if you're a clean bore freak.

    I think something must be said for the HW100. Had the best groups overall, yet wierd things happening with AA's in the wind. Perhaps something must be said for the twist rate in the Weirauch's barrel, although I don't quite know myself.

    Seem's to be apparant that Ultra's dont agree with heavy winds aswell as the CZ 200 not liking them too much, however keep in mind that this is a budget pellet, which I think Urabus mentioned is not 'sized sorted'.

    Accupells don't agree with my S400 as mentioned above, the control group showing this nicely. What is puzzling though, is that the groups appeared to tighten significantly in heavy wind.

    Okay now I have to go and scrub my barrel with antiseptic ointments, which I promised to my 'girl' as I loaded the Accucraps.



    ...

  8. #8
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    i dont think she will ever forgive you avion.............

  9. #9
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    very nice and interesting. remark also professional

    we wanna see tornado test too.

  10. #10
    Sharp Shooter
    Protea FT Team '06

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    well done avion, if i didnt buy like 20 tins of AA for myself, i would of tried accu's in my gun for the nationals...

    avion, considering the group of the accupells tighten up at 50 meters, the resluts will be alot better then AA i presume?

  11. #11
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    Jason I dunno mate. I think it boils down to each rifle's preferences - re: groupings.

    However it does seem that Accu's behave better in the wind. That said I reckon if you can get them to group, then it's probably best to use the Accu's.

    Been wondering about this.. perhaps it's the weight balance of the Accu's that help. If you compare them to the AA's, the Accu's have a shallower skirt, thus the balance is more so to the rear, perhaps this helps in windy conditions?

    ...

  12. #12
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    Oh where are my manners? :messed:

    Would like to thank Refresh (HW100) and WolfFlow (CZ200) for the help with the tests.

    soz.

    ...

  13. #13
    Sharp Shooter
    Protea FT Team '06

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    ya, there is more surface area on the AA then the accu...

  14. #14
    Inactive Member

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    no prob, thanks for the setup, tis always good to do some extensive testing under controlled environments.

  15. #15
    Inactive Member

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    Well its good to know that silence can bring out a closed sniper. Scary thought is it not.

    Just kidding. I really appreciated your help, I was begining to consider the EV2.

    !alien

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