It's been 9 yrs. since there was a call on the DoubleGunBBS and here "Contribute Junk To Advance Barrel Strength Knowledge" with the hope of obtaining vintage barrel samples for composition and strength testing.
The following was posted by ‘Zircon’ in 2007. Unfortunately, the testing effort apparently ended thereafter.
http://www.familyfriendsfirearms.com...p/t-55364.html
Many here have seen this thread on DoubleGunBBS
http://www.doublegunshop.com/forums/...=355898&page=1
I will have said barrels next week, and have a commercial metal testing lab nearby that utilizes scanning electron microscope (SEM) for fracture surface examination and high resolution microstructural examination, and energy dispersive x-ray spectroscopy (EDX) for chemical identification and composition analysis. They also do MagnaFlux/PD testing. I will discuss options with an engineer next week.
http://metl.com/services/
SO ONCE AGAIN, if you have a segment of pattern welded barrel, I would like to start with EDX for composition analysis, and would very much like to compare low grade Belgian Twist, mid-grade Damascus (the Remington A grade), and a high grade (?Parker Bern4, D4 or D6) barrel.
There appears to be some sort of 'Curse of the Mummy' associated with these efforts, as calamities seem to befall whoever wants to do the testing, but I've never been accused of good sense
Please e-mail me at
revdoc2@cox.net if you'd like to send a chunk of barrel and thanks!