Unknown 45 acp


45 ACP blank?
What have I got, who made it and what is its use?
Narrow extractor groove
IC over arrow



Might it be a .455 auto blank? Appears to be semi rimmed.


.470 rim
.465 c/m
.922 c/l


Can anyone identify the headstamp?


any ideas on headstamp and cartridge use?


Not me & can’t think what it might be even if I try putting pieces on the letters - F C with a broadarrow? makes no sense. I C I broadarrow, maybe? but not seen that ICI before, still missing an “I” & no hint of one either.


Has a very “Yugo” look to it. Some kind of tool or pyrotechnic cartridge?