Wall Thickness Gauge

[Bill Murphy]

Mr. Anderson is being very trusting of "factory bore diameters", which may vary by about .030 from gun to gun. I personally don't care if gun buyers measure bore diameters and wall thickness, but I will continue to do it after 56 years of paying cash for double barrel shotguns. My equipment cost me about $300, has been working for decades, and has protected me through hundreds of thousands of dollars of potential mistakes. A selling dealer who tells you he doesn't own a bore gauge is a liar. He just won't let you see him using it.

[Pawel Janusz]

simple is best

[wayne goerres]

Just to make things interesting (and not start a war) I have taken the ribs of of several barrels as I am sure many members have and Have found them to be heavily rusted. So the conclusion that I would make is that the thinnest part of the barrel is going to be where you can't measure. That would be under the rib. Stating barrel wall thickness may be ok but I will proof fire mine.

[OH Osthaus]

Originally Posted by wayne goerres

. Stating barrel wall thickness may be ok but I will proof fire mine.

true

but that's a you break it - you bought it deal

if you know the barrels measure thin before purchase - that expense is avoided

[Gary Rennles]

Originally Posted by wayne goerres

Just to make things interesting (and not start a war) I have taken the ribs of of several barrels as I am sure many members have and Have found them to be heavily rusted. So the conclusion that I would make is that the thinnest part of the barrel is going to be where you can't measure. That would be under the rib. Stating barrel wall thickness may be ok but I will proof fire mine.

I might just be lucky but...Most of the ribs I have removed,were full of nasty looking flux but rust has not been a issue.
The area where the rib sits is filed to a slight flat and is thinner on most of the barrels I see

[Drew Hause]

Neat Gary; another Damascus-Twist barrel.
This is David Purnell's 1888 12g 0 grade toplever hammer gun refinished by Dale Edmonds.



Gary Carmichael's also marked "Twist"