IIRC, there were some SS pistols having barrels with "Olympic chambers", shorter than standard ones.
However I´m not sure this would be the same thing, since (IIRC) the idea behind an Olympic chamber would be to force the lead into the rifling by means of a shorter throat, and not a shorter chamber lenght.
On the other side of the coin, the .32 S&W Long that appears in the pictures does n´t seem to have a roll crimp (the .32 S&W round in the other pictures has it).
So maybe a .32 S&W Long round with a crimped case will seat just fine in this tight (Olympic style?) chamber.
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