The italian gun factory “Falco” has recently developed a new, very small shotshell for the little hunting species, like birds.
The cartridge is not yet CIP listed, but the italian proof house is working on ballistic and pressure data.
Actually, it is a modern version of the 6 mm Flobert shotshell.
A very long slightly tapered case of about 60 mm loaded with a small pistol primer and a small load of pellets ( about 7 grams). This cartridge and its loading kit was shown at the annual italian hunting show.