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Jul 28th, 2025
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Joined: Dec 2001
Posts: 817 Likes: 65
Sidelock
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OP
Sidelock
Joined: Dec 2001
Posts: 817 Likes: 65 |
Hello:
Was wondering if I could get some advice. I am thinking of having a set of 30" barrels re-done. My wall thickness measurements are as follows:
Right barrel:
Breech at 9" - .046
Muzzle at 9" - .029
Left barrel:
Breech at 9" - .044
Muzzle at 9" - .029
I think that is pretty good thickness for a 115 year old gun, and should be fine to re-do. Just a couple of other opinions.
Thanks in advance.
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Joined: Feb 2006
Posts: 3,854 Likes: 118
Sidelock
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Sidelock
Joined: Feb 2006
Posts: 3,854 Likes: 118 |
I would agree that the wall thickness is good. Breech readings at 9" are good. Be good to know what the readings are right past the forcing cones and around 15" where your one hand would be.
Other than that, go for it.
David
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Joined: Feb 2011
Posts: 1,405
Sidelock
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Sidelock
Joined: Feb 2011
Posts: 1,405 |
Wall thickness is good.
And providing no pitting is present on the outside. The amount of material removed to polish for bluing will be nill.
B.Dudley
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Joined: Jan 2002
Posts: 10,161 Likes: 125
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 10,161 Likes: 125 |
also, the wall thickness in front of the chambers is critical for safe shooting, as that is where the greatest pressure usually occurs when a gun is fired...
keep it simple and keep it safe...
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Joined: Feb 2002
Posts: 14,457 Likes: 278
Sidelock
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Sidelock
Joined: Feb 2002
Posts: 14,457 Likes: 278 |
Just don't trust the preparation to a Brit. You will end up with .009 wall thickness and a trip back to Purdey for a $15000 set of barrels.
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Joined: Dec 2001
Posts: 3,553
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 3,553 |
Eightbore,
I don't see any reference to Purdey...did you have a bad experience with an English Gunsmith?..just sounds a little broad in scope,as if none are able...which I'm sure is not true
cheers
Franc
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Joined: Jan 2002
Posts: 11,574 Likes: 167
Sidelock
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Sidelock
Joined: Jan 2002
Posts: 11,574 Likes: 167 |
also, the wall thickness in front of the chambers is critical for safe shooting, as that is where the greatest pressure usually occurs when a gun is fired... It actually occurs IN the chamber. But unless there's some sort of obstruction directly in front of the chamber, or unless the chambers have been lengthened leaving insufficient wall thickness, that's a very unlikely place for a gun to burst.
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Joined: Dec 2001
Posts: 12,743
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 12,743 |
also, the wall thickness in front of the chambers is critical for safe shooting, as that is where the greatest pressure usually occurs when a gun is fired... It actually occurs IN the chamber. But unless there's some sort of obstruction directly in front of the chamber, or unless the chambers have been lengthened leaving insufficient wall thickness, that's a very unlikely place for a gun to burst. Very few guns with lengthened chambers actually burst there. As stated very few burst in the chambers, the area of highest pressure. The reason is Very Very few guns actually burst from excess pressure. The vast majority of burst shotgun barrels are the result of an obstruction & next in line is flawed metal. Flawed metal it would seem is actually more prevalent in older methods of making steel barrels than it was with Twist & Damascus.
Miller/TN
I Didn't Say Everything I Said, Yogi Berra
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