A number of years ago I spent several years living and working out in Dutch Harbor.
I spent much of my free time exploring by hiking, skiing and paddling kayak around Unalaska Isl.
While beach combing after storms, I found the 3 ~2" dia. casings on Hog Isl., and what I assume is a .50 cal casing, on the beach along the village of Unalaska.



I have often Imagined that these casings were left over from the defense against the attacks by the Japaneseicon. The only proof of that is in my mind. Plus, I have walked the deck of the USS Northwestern.


So much for reminiscing.
My question is:
What are the larger casings?
Can anyone identify them for me?
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