Unknown 30mm projectile

Can someone identify this 30mm HEI projectile (the right one is a 30mmx173 TP PGU15)

Michel

I think it’s 30x170 Oerlikon KCB

And it looks like a Raufoss product.

Thank you for your answers

Know you the origin of the cartridges used by the Royal Navy after 1982 on GCM-A03 twin mounting

Michel