Unknown 1.24" casing


Gents, I’d like to find out what these casing is. Pictured next to it in the first photo is a 1.1" casing for comparison. Mouth dia is 1.243", base is 1.765" and OAL is about 8". Any ideas?



There was a thread on a 30mm x 1.1" case here: viewtopic.php?f=8&t=7911
That one appears to be an experimental but note that it was only 182mm long.

Perhaps yours is an unfinished 1.1" 75cal. case? Would that explain the super thick rim?



I had the same thought, it is probably an unfinished case either smuggled out by a worker or was a factory reject for some reason.