stuck choke tubes

Plug the muzzels and pour penetrating oil down the barrels until it completely covers the choke tubes. Let it stand, muzzels down, for about 3 days. They should then come right out with the wrench. If you try and force them, you will cause damage. Just one of the joys of choke tube guns.

Sharptail
 
Sharptail said:
Plug the muzzels and pour penetrating oil down the barrels until it completely covers the choke tubes. Let it stand, muzzels down, for about 3 days. They should then come right out with the wrench.
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I've had a couple stuck and that treatment got them out without harm. If they still don't come out then I'd try a gunsmith. There are tools to help with stubborn choke tubes. They usually mean loss of the tube itself but that's a lot better than damaging a barrel.

The problem is likely corrosion on either the tube or the barrel threads. It doesn't take much to seize a choke. When installing choke tubes I usually coat the threads with a little light grease. That keeps them seated solidly and allows them to be removed as required. For long term storage of guns I remove the choke tubes.
 
I've seen a gunsmith take a propane torch to a Remington 870 with a stuck choke tube. He gently heated it, tried to remove it, gently heated it, tried to remove it... Took a couple mins of careful work, but worked very well. Oh ya, he also coated the choke tube with anti-seize before reinstalling it!

Cheers
Jay
 
"Liquid Wrench" by Gunk is by far the best penetrating oil I have tried. It works faster when there is vibration (I can hear the comments on this already). For example, spray it on a stuck bolt on your car, start the car and let it idle for 15 mins and the bolt is loose (seriously). Soak the tube with this stuff, let it soak in for a while, then put a bunch of rounds throgh it like Grouseman said and it will probably come right out. This stuff is in a yellow can, available at Canadian Tire (WD-40 is cr@p).
 
Jay said:
I've seen a gunsmith take a propane torch to a Remington 870 with a stuck choke tube. He gently heated it, tried to remove it, gently heated it, tried to remove it... Took a couple mins of careful work, but worked very well.
Click to expand...
Do not try this at home. Too much heat and you'd run the risk of springing a top or mid rib.
 
I agree also with using anti-sieze on the threads afterward
I use the crayon type, keep it in my range bag with the choke tube case
Only takes a bit, and 2 seconds
 
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