No way in hell, Amigo.
The .380 case is 2mm too short to make headspace in the 9mm chamber. As well, it's considered a straight-walled case & has a much smaller diameter.
But - just for argument, many 9x18mm (ie: Makarov) chambers will accept & fire .380 ammo. Not recommended, tho - as the bore is grossly oversized @ .363 (for the .380 ACP's .355 dia slug. Brass swells-up badly & becomes useless for any further reloading purposes.
Chat with our AI personalities