Some Backyard finds this afternoon

I went out into my backyard this afternoon for about an hour. I tried some different settings on the AT pro because there's so much junk in my yard. I found three Lincoln memorial pennies, haven't gotten the date off yet. The stuff in the top left of the first picture all came out of the same 6" wide hole. I also found a rifle casing in my front yard, still need to clean it up. And what I think is a hunk of lead with a hole in it, not sure what the heck it is.

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