I appreciate Edgar's insight. Some of you are likely following this thread
http://www.doublegunshop.com/forums/...=357105&page=1
I believe we're going to end up with a cascade of options for non-destructive (duh
) testing of vintage barrels; fluid steel or pattern welded, starting with external and internal (via a digital bore scope) visual examination.
The problem with pin and micrometer wall thickness gauges is when pits are present. It is very difficult to position the pin exactly in the bottom of visually identified pits, and impossible if the pits are on the medial wall.
I hope to have the results of radiography on a second barrel tomorrow. This is a negative x-ray image of the first, which enhances the defects in the barrel wall, and may also be useful for measuring wall thickness
Stay tuned.
Threaded Mode