I have inherited a couple of loaded 4 bore cartridges (AA) and wondered if they are worth anything or if there is a demand for these things.
I have since done a bit of research the cartridges have a 4 on the headstamp, with Eley-Kynoch (ici). This may not mean they are 4 gauge. They measure 3 3/4" length by 1" in diameter.
Any help with ID appreciated.