Actually got somethign from the Auciton from Hell today, Munitions.

[Aragorn243]

I'm thinking they had a guys collection and they broke it up or he broke it up. They sell on consignment at this auction. They had a big box of individual cartridges in envelopes that I didn't even take notice of until I was watching the lots actually sell. Had I noticed that one, I might have bid on it. If that's the case, it's likely this box has only one of each type in it. I'm curious as to the red plastic one. Either some sort of blank or shotgun round by the looks of it, probably 20mm also.

I will pick them up tomorrow morning but probably won't have time to photograph them till I get home in the afternoon. I'm anxious to see what they are also. Your initial guesses are quite intriguing.