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HW100 owners???

Discussion in 'Anything Airgun Related' started by Scots Bob, Jan 13, 2016.

  1. Scots Bob

    Scots Bob Donator

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    Hi just a bit of advice needed guys ,when I charge to 190 bar and fire a magazine the pressure drops to 160 bar now do you think this is a big drop considering your supposed to get 60 shot ,don't won't to run the cylinder dry just wondering if you rifles are the same ????
     
  2. Tim_B

    Tim_B Pro Poster

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    to be honest I have never looked at the gauge after 1 mag - but i know i can get at least 4 mags before I start to look.

    thanks
    Tim B
     
  3. Seamaster

    Seamaster Super Moderator Staff Member Mod/Admin

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    Fill it to 200bar mate, then see how many shots you get until it drops off the reg.

    Chris
     
  4. Cymru-Dave

    Cymru-Dave Donator

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    Put 4 mags through it (.177) and see where it ends up, starting at 200bar you should still be in the green but only just if I remember right
     
  5. Scots Bob

    Scots Bob Donator

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    Thanks lads for your replys all the best
     
  6. sherlock1963

    sherlock1963 Engaging Member

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    Mine drops about 10 bar soon after I remove the fill probe. I was told it is a common thing with HW100s.
     
  7. sean85730

    sean85730 Engaging Member

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    In .22 I'm getting 5-6 mags between 200 bar and 90 bar (just in the yellow) the pressure drops like hell at the first mag but slows for the rest.

    Sean
     
  8. Jim-in-Darwen

    Jim-in-Darwen Donator

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    Mine is the carbine (177) and after 5 mags (70 shots) it is still in the green (just).
    I fill it to 200 bar.

    Jim
     
    Last edited: Jan 13, 2016
  9. Stag

    Stag Well-Known Member

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    I fill it up to just over 200bar then release and re charge.
     
  10. audi swift

    audi swift Man up & pull the bloody trigger.... HFT 101.

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    Live in Stoke On Trent. But i visit Bromsgrove.
    just used my new hw100 sk & I can get 6 mags out of it before the poi drops at 45 yards a tad.
    200 bar fill down to around 90 bar.
     
  11. Philpot

    Philpot Posting Addict

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    HW100KT, 4 mags in the green. No problem but I fill to 200 bar.

    Phi
     
  12. carper

    carper Engaging Member

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    60 to 70 shots from a .177 k, more from the full length
     
  13. happydad

    happydad Engaging Member

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    Hi,
    After doing a couple of shot strings when I first got my Kt, it worked out at about 7 shots per 10bar of pressure. So from 200 - 90 bar 77 shots. This is only a rough guide as condition of seals and how accurate your gauges are on the dive bottle/ hand pump & cylinder, + how you go about filling the cylinder will effect the amount of shots you will get per bar of pressure.

    HW state in the instruction manual that the filling of the air cylinder should at least take a minute (or longer) to be completed. If you open up the fill valve to quickly and fill the cylinder with in a few seconds, then you will have a false reading and have less air in there than you think.

    Bit like the Hare and the Tortoise :D

    ATB
    Mike
     
  14. terry1001

    terry1001 Major Poster

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    If you fill too quickly and you fill from a low pressure in the rifle then you generate heat. When the rifle cools the pressure will drop. This is why you're advised to fill slowly and if it's important you can top up after a half hour or so.
    If you want to check carefully then, bearing in mind that the rifle gauge won't be as accurate as the one on the bottle, then fill to 200 bar then allow to cool and top up. Fire a full shot string until the regulator stops working and count the number of shots fired. It's best if you can do this over a chrono and record the velocities. The regulators can take a moment to refill after a shot so don't just bang them through as fast as you can.
     
  15. surrey shooter

    surrey shooter Donator

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    I have a carbine .177 and 190 to just before 90 I get 56 ( 4 mags) usable shots.
     
  16. Andy-K2

    Andy-K2 Posting Addict

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    This /\ /\

    I guess its about 1Bar per shot, I get about 120 shots from my .177 with an A&M Cylinder filled to 200bar but it was around the same with the OE cylinder. I can shoot useable shots down to 90bar whilst plinking in the garden, after that they fall away very rapidly.
     
    Last edited: Jan 14, 2016
  17. Jim-in-Darwen

    Jim-in-Darwen Donator

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    I also was advised to take my time over filling due to reasons given and I do believe it can make a big difference to the number of shots that you can get before a refill is needed probably due to having the full 200bar in the cylinder.

    Jim
     
  18. kermitboy1

    kermitboy1 Banned

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    Fill my .177 to 195 bar and usually get five mags of good even accurate shots. Usually just off the yellow by then. Love my 100 to bits. KB1
     
  19. davymole

    davymole Donator

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    filling up to 200bar then wait mine drops to 180 top back up, get 5 mags in .177 with a KT but has started to lose air when left have got the seals just have not got the time yet
     
  20. Scots Bob

    Scots Bob Donator

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    Thanks everyone much appreciated .I will find out what I get out of mine over the weekend .All the best!
     

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