FX "X" Barrel Defect

Forums PCP Airguns FX "X" Barrel Defect

  • Views : 778
  • Link

    Ziabeam
    Participant
    Member

    I've re-barrelled countless airguns and firearms for various reasons, more often than not being able to detect the deficiency of the abandoned barrel.  Sometimes it is a glaring defect, other times the inadequacy is nearly imperceptible… often mysterious. In MANY cases the barrel is essentially flawless saving a painful oversight, or worse a last minute operation that could have been executed in a better way, or more carefully.

    When a barrel is crowned with an piloted champhering tool, that tool must fit well, be free of debris or attributes that marr or otherwise bastardize the lands of the barrel it is trying to perfect.

     

    Case in point;

     

    This .30 Cal 700mm FX "X" barrel has been fired once, and exhibited varying degrees of leading at ONLY four of the five lands in the vicinity of the choke near the muzzle… I'll let you guess which fared better, which fared worse. In my assessment the barrel was crowned with a tool that had a pilot for centering, a VERY common practice utilized in the industry which has inherent perils.

    Performing final operations (such as crowning) on barrels is exceedingly more expensive by some techniques than others. The barrel shoots very well. Not as well as it might had it been spared the horrors of having its lands smeared near the crown, which begs the question (in my mind), "How dominant would nearly EVERY X barrel be… if it were just a smidge better built????"

    They already impress me ("X" barrels) From what mine tell me (yes I have others), they could be even better, which would be scary good.

    Keep doing what you're doing FX… but mind your manners on the finishing details PLEASE !

     

    Link

    Bob_O
    Participant
    Member

    Beautiful pics and a well written post.

    Being that the barrel shoots very well, would this be more a fit and finish or QC issue rather than a defect?  

    What's your opinion on whether those marks would be smoothed out over the course of 100 or more pellets?

    Link

    nervoustrig
    Participant
    Member

    Nice pictures and analysis.  I see that type of damage from Crosman and SPA from time to time but they are budget brands.  I’m surprised to see it from FX.  That is unacceptable for their price point. 

    Link

    Ziabeam
    Participant
    Member

    Bob_O

    Beautiful pics and a well written post.

    Being that the barrel shoots very well, would this be more a fit and finish or QC issue rather than a defect?  

    What's your opinion on whether those marks would be smoothed out over the course of 100 or more pellets

    Bob_O

    Beautiful pics and a well written post.

    Being that the barrel shoots very well, would this be more a fit and finish or QC issue rather than a defect?  

    What's your opinion on whether those marks would be smoothed out over the course of 100 or more pellets?

    First of all thank you for the measured and cordial response.

    I believe in this airgun and FX's innovative approach to refined pellet placement… I'll smooth out those tooling marks whilst attempting to forget they ever existed, knowing their mitigated presence  is unlikely to completely vanquish their occasional influence, or my paranoid insistence that their unfortunate origins might lead to bad things.

    If they were unavoidable I'd  not be so dismayed lol.

    Link

    Ziabeam
    Participant
    Member

    Bob_O

    … would this be more a fit and finish or QC issue rather than a defect? …

    Please understand, by "Defect" I mean their manufacturing process produced late-stage detractors that marred previous sublime refinements.

    Link

    Bob_O
    Participant
    Member

    Hard to argue with that Z.

    Link

    bucketboy
    Participant
    Member

    Nice write up thanks, 

    i would not let a barrel I machined leave my workshop looking like that.

     

    Bb

    Link

    STO
    Participant
    Member

    Damn that is a real shame to see. Thanks for bringing this to our attention. +1 to you sir! 

    Link

    gunlocators
    Participant
    Member

    Im Surprised my self

    Link

    nomojo65
    Participant
    Member

    Very nice observation and description!, but also if I remember correctly there is a tension screw that threads into outer sleeve that if screwed in to tightly could possibly damage very outer edge of barrel? But should never cause that kind of damage to inner surface of barrel? Very good find! 

Viewing 10 posts - 1 through 10 (of 10 total)

You must be logged in to reply to this topic.