8mm Lebel
I know 8mm Lebel is a hoot to shoot! I was shooting mine at the range one day. I reloaded from scratch so I had never shot an original round before. The guy next to me holds a round out in his hand and asks "Does that shoot this?" I said, yes, that's 8mm lebel. He said he found it in a bunch of family stuff, probably from his grandfather from the war and he's been carrying in his range bag in the hopes of giving it to someone and gave it to me. Probably from WWI.
Well, curiousity got the better of me, so I loaded it in, pulled the trigger, it went click....wait.....wait.....bang! Did seem a little weak compared to what I was shooting in reloads. But that was really cool to shoot a round more than likely from the French in WWI.