I think William is right. Below is a picture of a complete 380 cartridge, showing the positioning of the top and bottom crimp marks where the projectile is held in the cartridge.
This would make sense as the 380 was standard service issue calibre for side arms in the British military ( Enfield No. 2 Mk I and Webley Mk IV pistols ).
RRPG
380 carts.JPG
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