Drew,

Thank you for the great effort. This certainly is an interesting thread, in addition to the related others.

Your ...

"IF METAL FATIGUE IS PRESENT, microphotographs will show evidence thereof. Adam described it as the appearance of the sand at the edge of the shoreline ie. layers of wavy lines."

... was what I was referring to when I used the term "beach marks" early on.

When reading that the gun had sat around wet for a couple days I pretty much crumbled-up that paper (the thought of possible metal fatique from repeated firings of max loads) but I am still looking forward to seeing the microphotographs.

Thanks again,

Mark