2011 long chassis Steyr

Discussion in 'Steyr' started by Ratinator, Apr 18, 2015.

  1. Ratinator

    Ratinator Well-Known Member

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    What is wrong with the 2011 Steyr?
    I have heard a few people have had problems with this model and I'm wondering why.
    Is it the long barrel, long chassis ,harmonics or a combination of all these.
    I don't think for a second there will be anything different with the internals compared to the shorter 110 model, so why have they caused some people big problems?
    I think a list of fixes would be helpful to other 2011 owners :)
    Simon
     
  2. RobF

    RobF Administrator Staff Member

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    It's not the chassis. There's some with the newer ones that have had issues.

    Common theme seems to be the longer barrel.
     
  3. Ratinator

    Ratinator Well-Known Member

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    Short barrel

    Could a standard 110 barrel be used with the long chassis ?
    Rob how far along is the barrel support from the breech in mm ?
    I will measure my support point to see what the difference is.
    I'm thinking that a shorter barrel could be used to prove it's the barrel length that's at fault, maybe a barrel could be cut back to reduce it's length, after all it's a simple thing to get machined.
     
  4. Conor

    Conor Never been banned from sales Staff Member

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    Ask John Costello.
     
  5. Ratinator

    Ratinator Well-Known Member

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    Stripper

    Has anyone tried the hydro stripper rather than the standard double cone.
    I measured the internals of the double cone and it's 5mm that allows for .25 of a mm clearance for a pellet to pass through, and that's assuming the skirt is still 4.5 mm after exiting the barrel.
     
    Last edited: May 7, 2015
  6. Ratinator

    Ratinator Well-Known Member

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    John Costello

    Morning Conor
    Was John's the 2011 long model then ,I seem to remember he had an extra long Hydro stripper as well ?
     
  7. Ratinator

    Ratinator Well-Known Member

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    Solution

    Short barrel with longer stripper to bring the cylinder and barrel flush.
     

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  8. RobF

    RobF Administrator Staff Member

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    I believe the shorter barrels just drop straight in.

    But then i've seen at least 1 problematic short barrel. Possibly 2. Very similar to the 'long barrel's problems'. I know of one barrel that's been noted as being subpar by Austria.

    My barrel doesn't touch the mount... so it's not that. And I'm pretty convinced cleaning mine solves the problems, although i'd like to know why it takes 20 shots sometimes to be on or 2 others.

    I've got a couple of other barrels now to play with, and a rig that has a solid low fps variation so we're hopefully able to isolate rig from barrel now.
     
  9. RobF

    RobF Administrator Staff Member

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    Stripper doesn't appear to make any difference. Mines removed, only the cage is there. Because i was cleaning mine it was picking up stubborn gunk a lot. So just the cage is on now.

    A stripper isn't going to make a barrel group. It may make it worse, but it won't make it better (unless you're into harmonics voodoo which will be individual to each setup and it's variables... and we're looking for something far more common than that)
     
  10. Conor

    Conor Never been banned from sales Staff Member

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    Mine is standard 2011 model with a piece of the chassis at the front chopped to allow me to fit the shorter cylinder.
     
  11. Ratinator

    Ratinator Well-Known Member

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    Aggressive

    I took the cones out of mine and it seemed very aggressive ,the hydro stripper has a lot more clearance and in my opion make the rifle just as nice to shoot as the standard double cone.
    Measured my chassis and from breech to centre of grub screw hole is 305mm ,my standard barrel is 450mm long.
     
    Last edited: Apr 18, 2015
  12. Conor

    Conor Never been banned from sales Staff Member

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    I had Steyr anodise it black for me just to be different then now they are all black :eek:o:rolleyes::D
     
  13. hmangphilly

    hmangphilly Not quite a full phil

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    how to tell one year from another ?
    by chassis number ?
    03553

    interested to know what i've got ............
    [​IMG]
     
  14. fireblade

    fireblade Team AirArms

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    Looks like a 110 short, which has had a quick fill fitted. The a long barrel, the twin cone stripper and the BIG BLACK FOOT style hamster all off the long chassied ft version.
    does it have the power adjuster?.
     
  15. fireblade

    fireblade Team AirArms

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    Only the barrel, it needs some dedicated and carefull preperation to get it right.
    ask me at GP1 or GP2 Even for details.
     
  16. hmangphilly

    hmangphilly Not quite a full phil

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    yes had a cross slot adjuster .
    hammer with flat section along most of its length. and brass tang as spring guide

    converted to external adjuster with new style hammer and spring now.

    thats a bsa barell that we're trying out its about 550 mm at the moment
    the std one is silver and 450mm
     
  17. Tone

    Tone Active Member

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    Simon

    When I was struggling with one of these 2011 ft long versions the only way I could get any form of accuracy at 25 yrds indoors was to turn the power right down and then the groups came in a lot tighter. I wondered whether the twist rate was too fast and the barrel was based on a low powered 6ft lb match target rifle?

    so when it was running at 12 ft lb the pellets were spinning way too fast?

    I tried all sorts of things including harmonics.

    The rifle is long gone now, I was going to use it for bench rest but could not get it right, might of being fine for other disciplines though.

    Tony
     
  18. Ratinator

    Ratinator Well-Known Member

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    Twist rate

    The only thing I know about twist rate is that most air rifle barrels are barely doing one revolution ,i believe the term 1 in 19 means the pellet turns 360 degrees in 19 inches of travel.
    I think this is about standard for air rifle barrels and most barrels are between 15-24 inches in length, so at most 1 and a 1/4 turns.
    It would seem from Mr Costello's success that the shorter barrel is more accurate so maybe there's something in the extra twist that affects it.
    I'm wondering if John had a standard barrel cut back or weather it's an old faithfull his dad had tucked away ,it may even be a barley twist.
    I'm sure a twist rate expert will be along shortly to tell us the exact sience behind this.
     
    Last edited: Apr 19, 2015
  19. Conor

    Conor Never been banned from sales Staff Member

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    John's is his old faithful Barley twist.
     
  20. simona

    simona Active Member

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    John's barrel is the old hammer forged type, the same barrel that he had on his LG100. Of course this is not why he's had such good results.......I can't remember why he swapped that barrel in, I can't remember him saying that he had any particular problems with the standard barrel.

    These modern Steyr barrels do seem fussy but some at least are very good with the right ammo. It would seem that Steyr could make life a lot easier for everyone and reduce their costs by fitting a standard LW non-plated barrel but I guess they know what they are doing.
     

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