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Kolar choke tube blew out

Discussion in 'Shooting Related Threads' started by 1166, Apr 30, 2010.

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  1. 1166

    1166 Member

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    The bottom choke tube on my O/u lite weight barrel blew out today, woundering what could cause this to happen & if any one else has had this happen. Thanks
     
  2. claybrdr

    claybrdr Well-Known Member

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    Not having it completely screwed in is all I can imagine.
     
  3. skeeljc

    skeeljc Supporting Vendor Supporting Vendor

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    Choke becomes loose. Plastic from the wads gets driven against the base of the choke. Plastic lodges between the choke and the barrel causing the owner to believe the choke is still seated. Plastic eventially begins to peel the choke skirt away from the bore. Enough skirt is peeled away and the choke is ripped from the barrel.

    Chokes need to be tightened with a wrench and removed and inspected occasionally.

    Jim Skeel
     
  4. JerryP

    JerryP Active Member

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    Was this choke tightened with fingers or a wrench?
     
  5. 1166

    1166 Member

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    Jim Skeel & JerryP. Thankyou both, I think every one that responded has done so very inteligently & probaly solved the mystery. this choke tube was allways just finger tightned. I forgot to mention it left the barrel end bulged out on one side. Thanks again.
     
  6. mrskeet410

    mrskeet410 TS Member

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    Call Rags. Let us know how he treats you.
     
  7. JACK

    JACK Well-Known Member Supporting Vendor

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    I could never keep mine tight. Pete McCall even shosed me the "trick" and it still was loose at the end of 25
     
  8. Bruce Em

    Bruce Em Member

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    Hmmm, If it is loose, you will fatigue the threads. You can picture it banging forward.

    You got me thinking though; how tight should it be? Well the thread load unfired has to exceed the forward thread load as the shot passes through it.

    The actual thread details (I forget the exact terms)but the match up of root, pitch and tip diameters of the barrel and the choke will play into it.

    I have no idea how tight that is but the damage will be proportional to the number of shots fired.

    Any idea how many shots you fired with that approximate choke tension?

    I think I am going to go and tighten mine now !

    Thoughts comments

    regards
     
  9. halfmile

    halfmile Well-Known Member

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    I hate when that happens. I saw a Perazzi tube go downrange at a registered shoot once. Turns out the shooter was borrowing the gun.

    Geez......

    HM
     
  10. dverna

    dverna Active Member

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    Use Teflon tape to hold "loose" choke tubes in place.

    I had a Winchester that had that problem and Teflon tape worked for me.

    Much better than "choke tube grease". I use grease on tubes that do stay tight.

    Don Verna
     
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