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Don’t trifle with a duff rifle

Discussion in 'Anything Airgun Related' started by erifle, Sep 7, 2008.

  1. erifle

    erifle Active Member

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    Don’t trifle with a duff rifle

    The picture attached shows pellets that were fired from a Top manufacturer’s air rifle.
    The pellets were fired into ballistic Putty to identify an issue related to poor pellet grouping. As you can see some defect in the barrel is gouging a modest portion of lead from the pellet head and skirt of each pellet. This is believed to contribute to the rifles grouping issue.


    [​IMG]




    • It can be clearly seen that lead is gouged out on Pellets 2, 3 and 4 in the picture
    • In Pellet 1 the gouge is at the lower side and the rest of the Pellet shows only normal rifling marks


    1. The first gun (which we will call gun No1, purchased June 2008) was discovered with the above defect. The defect is believed to be the result of a CNC controlled machine being set incorrectly resulting in a drill hole slightly piercing the barrel bore and rifling, during manufacturer, at a point approx. 5cm down the bore from the breach.
    2. A full replacement rifle sent directly from the UK distributor and was found to have the same barrel defect. Based on the fact that it is not unusual for rifles to be in shop stock for 12 months before being sold then this issue could affect many customers guns already in circulation.
    3. The manufacturer could not supply a further non-defective replacement from current batch holdings! This potentially widens the time that rifles could have been on sale with the barrel defect and therefore the number of customers who unknowingly have a defective rifle.
    I can not name the manufacturer or model here at this point in time. But what I can say as is serves as a lesson when purchasing a new air rifle - That even though a gun looks perfect on the outside (And cosmetic appearance certainly is a purchase motivator), it's more about what you often can’t see directly on the inside that affects a guns performance.


    Although this experience is related to a particular example of a manufacturing defect (With much disappointment has not been communicated by way of "Recall notice" by either the distributor or UK Importer! since highlighted to them in June 2008) there are always the "Monday morning" guns that roll off the production lines too. You would be surprised at the variation in power, consistency and grouping potential from "identical" rifles even from the same batch.


    Recommend
    Check as many of your new guns performance factors as practical as soon as you purchase a gun because it becomes progressively more difficult to prove issues, the longer it is left from date of purchase.
    Check (e.g.)

    • Consistency and Power - Chronographs are becoming fairly common place and cheep starting at £39 (e.g. Combro Chronograph) or alternatively most good air rifle clubs or gun shops have a chronograph these days. Good further advice is available from this forum here
    • Grouping - quite a science in its own right and there are so many factors which influence the ability to check your rifles grouping that it could be a whole article in its own right (Including a little known phenomenon called Pellet Spiral). But what you can influence is the physical characteristics of your gun such as the barrel in the example above. - Fire some pellets into ballistic putty (A substantial chunk of plasticine or playdo may be a suitable alternatives - but do this safely!) check for visible defects scored onto the pellet over and above the normal rifling pattern that is imparted to the pellet by the rifling.
    Any Rifles that are found defective - If you can't reach a reasonable remedy with the retailer/manufacturer then you have every right to "Reject the goods" under the "Sale of goods act 1979" (And it’s various amendments etc) - it’s good to know your rights in these situations and a good summary / further links can be found at [ame]http://en.wikipedia.org/wiki/Sale_of_Goods_Act_1979[/ame]



    Has anybody got a defective air gun experience that they can share here too?

     
  2. Darren Petts

    Darren Petts Temporarily Alive

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    You haven't actually shared that one. Failing to mention the gun will certainly leave others buying the duff ones. Why protect the company at the expense of the public?
     
  3. Andy

    Andy Administrative Staff Member Founder

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    Come on spill the beans, the suspense is killing me. :rolleyes:
     
  4. Vulcanator

    Vulcanator Engaging Member

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    I replied to this thread and it appears that my response was deleted-why?:mad: Come on Mods, fess up and give me your justification on this matter. And yes, I would still like to know the manufacturer in question!
     
  5. Andy

    Andy Administrative Staff Member Founder

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    We were in the process of moving servers, you posted after the database had already been transfered. ;)
     
  6. EX Mod Cog

    EX Mod Cog Keyboard Hero

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    a tuppence says it's an SMK :D

    EDIT: you're saying they're not a "top manufacturer"?
     
  7. RICHIE612

    RICHIE612 Engaging Member

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    Denbigh North Wales
    Please dont be daystate
    Please dont be daystate
    Please dont be daystate
    Please dont be daystate
    Please dont be daystate
     
  8. Vulcanator

    Vulcanator Engaging Member

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    Fair enough.:)
     
  9. i8allthepies

    i8allthepies Posting Addict

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    Location:
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    Having owned more than my fair share of SMK's over the years, I very much doubt they could produce a barrel this good.:(

    And before anyone reminds me I still have a QB78, that has a Terry Robb barrel:up:
     

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