Prior to today, I didn't even know these existed but now I would like to have one if anyone knows someone who has them available for purchase.

Spotted this odd cartridge case in a display case at a flea market today. Obviously a 50 caliber casing but only half the size of the 50 cal BMG. Fellow explained what it was for, a spotting cartridge for the US military recoil less rifle. As these made a huge cloud of dust/debris/smoke, they fired this first to determine whether they could hit the target with the regular round.

I did come home with the casing but I'd like to get a full cartridge.
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