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Topic: Threads giving out on installed thin wall tubes?, (on older shotguns)< Next Oldest | Next Newest >
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PostIcon Posted on: Feb. 12 2012,11:47  Skip to the next post in this topic.   QUOTE

I was recently told, by a knowledgable guy that the threads can give out on installed thin wall tubes.  I believe he meant on older shotguns.  I wondered what others thought about this.  I had been thinking of having this done.
thanks,
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PostIcon Posted on: Feb. 12 2012,7:58 Skip to the previous post in this topic. Skip to the next post in this topic.   QUOTE

Actually, I can see where this could happen if the tubes and inlet are not kept clean and the tubes are shot in a loose configuration.

However, I have not heard of it happening due to age of gun...


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Bruce A. Hering; NSCA Lev III Inst.
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2011 Division I ACUI National Champions
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2012 ACUI Div II National HOA Champions
2012 SCTP Collegiate Champions
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Southeastern Illinois College
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PostIcon Posted on: Feb. 12 2012,9:27 Skip to the previous post in this topic. Skip to the next post in this topic.   QUOTE

I have a 1913 gun with thinwall tubes in it.  They haven't been in that long, but it has about 15000 rounds through the tubes with no issues to the threads.

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PostIcon Posted on: Feb. 13 2012,1:52 Skip to the previous post in this topic. Skip to the next post in this topic.   QUOTE

I don't know about older guns but my father had an SKB (auto loader) that had thin barrels and require the thin wall chokes and inadvertently ran a steel load through it and it became a fixed choke gun after that. We couldn't get the choke out and you could feel the thread pattern on the outside of the barrel.
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PostIcon Posted on: Feb. 13 2012,7:26 Skip to the previous post in this topic. Skip to the next post in this topic.   QUOTE

On another site somone said they were warned, by the company that installed the thin walled tubes, that thinner barrels could end up having the threads show through on the outside.
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PostIcon Posted on: Feb. 13 2012,9:24 Skip to the previous post in this topic.    QUOTE

There's thin and then there's thin...remember some of these older European guns have barrels that are literally paper thin....0.020 or so wall thickness, THAT'S thin.  MOST quality double guns don't have barrel-walls thick enough to have just anyone install choke tubes, hence they require "thinwall tubes"...but they still may be much, much thicker than a really truly thin tube.  It stands to reason that on an ultra-thin wall you need an ultra-thin tube, and that the threads will be of minimum "bite"...so any degradation from wear, lack of lube, etc might make a lot more difference than on tubes with more aggressive threads.  These might also be more prone to some of the other issues mentioned--but I think it bears keeping in mind that just because a set of barrels requires thinwall tubes does not mean it can be generalized to another set of thin barrels.

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