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How does a choke tube get stuck?

Discussion in 'Shooting Related Threads' started by mrskeet410, Mar 28, 2010.

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  1. mrskeet410

    mrskeet410 TS Member

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    I often read threads asking how to free a stuck choke tube.

    But how does a tube get stuck? Are we talking rust after a gun gets wet? If my gun is in the rain I remove the choke-tubes, then wipe them and the barrel threads with a gun rag.

    I probably shoot sporting or 5-stand about once a month, and remove my SKEET chokes and replace them with Light Mod. I wipe them down with the same oily rag I use to wipe down the gun. They always go in and out without easily.

    Maybe once a year I remove the choke tubes from my tube-set and wipe them off.

    So what is being done, or not done, when they get stuck?
     
  2. short shucker

    short shucker TS Member

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    Corrosion from not being lubed properly and not being removed from time to time.

    ss
     
  3. phirel

    phirel TS Member

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    Many things can result in a stuck choke tube. Corrosion is but one cause. The threads on the tube and in the barrel are far from a perfect match. There are irregular gaps between these surfaces. Excessive pressure can deform these spaces and result in a bind. Lubricants can become thick under some conditions and develop into a weak adhesive. Barrels and tubes can become deformed resulting in a bind. In machinery, it is not uncommon for a screw to go in easily but after a little time, come out with difficulty. The quality of the threads is a prime problem. Few have the skill or equipment to hone threads properly.

    Pat Ireland
     
  4. spitter

    spitter Well-Known Member TS Supporters

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    Typically its corrosion... imagine repeated heating and cooling... expansion and contraction, plus introduce additional moisture and voila! Two somewhat dissimilar metals may also interact - I can't recall that term - but that creates another variable...

    The mechanics I shoot with, introduced me to "anti-seize" for use on nuts/bolts in automotive applications - messy if applied too liberally... a little dab with do ya!

    Respectfully offered,

    Jay
     
  5. unplugged

    unplugged Active Member

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    You don't have to shoot in the rain to have a corrosion problem. Someone mentioned heating and cooling, but even more moisture is a product of combustion! As chokes are not a perfect fit, some of the water vapor from combustion along with the by products of carbon and powder residue will get behind the choke tube. If you leave it long enough, it will rust in the bore.
     
  6. blkcloud

    blkcloud Active Member

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    After a bunch of shooting I have had the plastic from the wad melt and get between the choke and the i.d. of the barrel causing them to stick.
     
  7. wayneo

    wayneo Active Member

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    Galvanic corrosion..........Wayne
     
  8. short shucker

    short shucker TS Member

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    blkcloud,

    You may want to change the brand of wads you are using. I've never had plastic build-up that bad.

    ss
     
  9. Savage99Stan

    Savage99Stan Active Member

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    One more thought....if you have one out and clean it, be sure to clean the threads in the barrel also..if they are not cleaned out, along with the shoulder the tube seats on, you can get crud between the tube and the barrel, sometimes binding the tube, sometimes ruining it...if it can't seat fully at the bottom.
     
  10. spitter

    spitter Well-Known Member TS Supporters

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    Thank you Wayne!

    Just turned 50... lost a few more brain cells!

    Jay
     
  11. mrskeet410

    mrskeet410 TS Member

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    So it seems my monthly wipe-down is adequate. I should have probably added that about once a year I give the threads in the barrel a simple clean-out. I wonder what would have happened if I started using a different gun for sporting/5-five and left the SKEET choke tubes in from rain to rain?
     
  12. Allen-MX8

    Allen-MX8 Member

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    I am just thankful that my old Perazzi MX-8 does not have choke tubes!

    Allen
     
  13. kraiza

    kraiza Active Member

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    If you clean you gun and remove the choke tube evey time. You will never have a problem with stuck choke tubes.
     
  14. bigdogtx

    bigdogtx Well-Known Member

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    When I change tubes I put a drop of grease on the threads and sleeve. I would have to check tightness if I hand tightned but not if I used the wrench. The next change was effortless.
     
  15. Tripod

    Tripod Well-Known Member

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    I also oil mine every time and just keep them slightly tighter than hand tight. I have never had a problem with any of my several weatherbys or brownings or remingtons.
     
  16. atashooter

    atashooter Member

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    Gremlins... they sneak in at night, and tighten your choke tube with a pipe wrench...:)
     
  17. threedeuces

    threedeuces TS Member

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    Then you should be able to loosen it with a pipe wrench. LOL
     
  18. SilverShooter

    SilverShooter TS Member

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    I now use STOS Multipurpose Lubricant and have never had a problem with a choked choke again.

    When I used the other popular types, they inevitabley dried up and/or got thick.
     
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