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Joined: Dec 2006
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Sidelock
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Sidelock
Joined: Dec 2006
Posts: 34 |
I have a New Era double made by Baker. It has what I beleive are stub twist barrels. Gun in great shape. When I look down barrels I see no pitting. However I can see the "rings" of the twist of the barrels.
What is the normal look of the inside of these type of barrels? Am I seeing something that I need to be concerned about before trying some light loads in this gun?
It is a 12ga. sidelock action. Stock is in beautiful shape, the gun has not be abused other than someone shinned up the action, probably trying to make it look pretty after orginal finish was gone. However I don't know what kind of orginal finish the action had. Barrels look great from the outside.
Thanks in advance. JD
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Joined: Oct 2004
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Sidelock
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Sidelock
Joined: Oct 2004
Posts: 1,826 Likes: 12 |
There are more than 15 or so twist barrel SxS's at my club that get shot regularly- and mind you I'm not telling anyone else what to do- but if the gun looks sound, barrels ring, are tight, no deep rusting- we just go ahead and shoot them with low pressure loads [ below 7000psi ] . I worry more about shooting an action loose than blowing a barrel. Mind you, it's just my opnion. Paul
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Joined: Jan 2006
Posts: 9,758 Likes: 460
Sidelock
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Sidelock
Joined: Jan 2006
Posts: 9,758 Likes: 460 |
JD: if you could post high resolution close up pics of the outside, and inside, of your barrels we might be of more help. I would suggest you have the wall thickness measured to be sure they have not been excessively honed. These are "English Stub Twist" 
Last edited by revdocdrew; 08/08/07 02:52 PM.
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Joined: Dec 2001
Posts: 5,257
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 5,257 |
This could be riveling. It has been conjectured that this wrinkling of a bore is caused by a certain often repeated harmonic vibration.
This is probably true. If so, it may be the first symptom of a soon to fail barrel. Considering the possible cause of the recent bridge collapse, we can see that even modern steel is subject to fatigue and can fail.
These "wrinkles" can be honed out and leave the bore smooth but still compromised.
I would suggest an examination , by a competent smith, before shooting any riveled gun.
Best,
John
Humble member of the League of Extraodinary Gentlemen (LEG). Joined 14 March, 2006. Member #1.
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Joined: Jan 2002
Posts: 2,038
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 2,038 |
The action would have been color case hardened. I will say IMHO Bakers had some of the prettiest colors out there. The rings are kind of odd to me. I wonder if the barrels were honed and that is what you are seeing? I agree, measure the bores and the barrel thickness, just to know what may have caused that.
Oh no! Was that bridge made from Damascus or composite steel? Regardless, it will always come down to several factors, when steel comes to failure.
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Joined: Nov 2005
Posts: 4,598
Sidelock
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Sidelock
Joined: Nov 2005
Posts: 4,598 |
JD,
Without droning on about how the barrels were manufactured, it merely sounds as though a exceptionally tight mandrel was used. The gun has most likely been like that for nearly 100 years. I would not be concerned. If you want, for your own piece of mind, you could find some one with a bore scope. If there are no gaps in the welds, then the barrels would most likely be safe.
Pete
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