Author Topic: Chamber liner for a 45 colt  (Read 653 times)

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Offline Kmrere42

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Chamber liner for a 45 colt
« on: September 07, 2008, 02:26:50 AM »
HI,



I have a Taurus thunderbolt in 45 colt that is new to me.  I will be sending it back to the factory to get a couple of issues fixed.  However It has a badly over size chamber that is large enough to feed a fired case out of my Vaquero by just dropping the case in the top and throwing the bolt home. 


After it comes back I was thinking of taking the barrel off, bore and micro thread the chamber and thread in a  tool steel liner with a proper fitting chamber precut. 


Has anyone done this before???   I have seen 50 BMG barrels done like this with stellite liners just nothing this small.





Paul

Offline SharonAnne

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Re: Chamber liner for a 45 colt
« Reply #1 on: September 07, 2008, 08:09:49 AM »
since you are returning it to the manufacturer why not have them address the problem? You might wind up with a totally new rifle!
SharonAnne
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Offline John Traveler

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Re: Chamber liner for a 45 colt
« Reply #2 on: September 13, 2008, 01:30:21 AM »
Paul, chamber sleeving or re-lining is certainly possible, but entails some complications for the home gunsmith. 

Alignment is the biggest issue.  It the chamber sleeve is not perfectly concentric with the existing bore axis, and concentric with the re-bore, the .45 Colt chamber reamer pilot will not have the bore surface to guide on, resulting in a non-concentric chamber and throat.  Disastrous for accuracy and bore leading problems!  These same issues apply to most any gunsmith capable of doing re-sleeving work.  It's a job for the barrel re-lining specialist.

As for your comment on stellite liners for .50 BMG barrels, that is another matter entirely.  Armament factories, especially Government Arsenals, have the advantage of many generations of experience, specialized machinery, personnel, etc of addressing particular aspects of weapons manufacture.  Stellite lined machine gun barrels do give greatly extended useful and accuracy life in these applications, and that is why the US Government uses them.  The europeans, on the other hand, have never mastered the special problems in fitting stellite liners in their machine of gun barrels, and so, do not use them.  Even the great weapons factories of FN Belgium, Spain, Austria, Germany, Italy, and the UK never used stellite liners.

Your proposal is certainly a sound one, but should only be tackled by a highly qualified barrel rebore specialist.

John
John Traveler

Offline gunnut69

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Re: Chamber liner for a 45 colt
« Reply #3 on: September 14, 2008, 11:57:25 AM »
I would guess that Redman liners could line the barrel and cut a good chamber b ut this seems a factory defect to me and should be addressed by them. Since it's going back anyway?????
gunnut69--
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