32 and 380 magazines: differences?

[groovedoggie1]

I bought a pair of original 32 Caliber 1907 magazines on ebay and took my lovely little Savage pistol to the range with her 32 and 380 stablemates. The 1907 feeds perfectly through the original magazine and one of the new ones, but the other new one had quite a few hangups. When I got home I noticed some very minor differences. The feed lips look a little wider and the draw at the top front of the mag looks a little deeper. Can anybody tell me how to definitively determine if I have a 380 magazine in the mix? For what its worth, I can load 380 rounds into all three of the mags, but two of them are a little tougher to load and extract.

[Mad Dog]

I had a.32 mag that I could load .380 shells into but it wouldn't feed correctly in the .380. Is it stamped .380?

[groovedoggie1]

No, none of the three mags have any markings at all.