A long time ago, I detailed the results of my research regarding the wide variation in bullet diameters in .32 auto ammo. Case dimensions too. I also noted that a slugged CZ .32 barrel was a lot smaller than just about every US .32 barrel--.3075 vs .311 to .314. Has any body slugged their CZ .380 to see what they are? The US is generally standardized at .355 and I don't think there is the US/European discrepency in this caliber, but I would be curious to know.