Colt tells me my Colt Pocket Positive takes .32 Long ammo. But I've tried that from at least three different manufacturers, and none of them fit. They're all just a bit too wide to fit into the cylinder. Does anyone know whether there's any current ammunition for this piece?

Today my good friend came home from an auction with what appears to be a full box (50 rounds) of Winchester brand .38 New Police ammunition. The cardboard box is in good condition and the ammunition looks as good as the day it was made, without corrosion or tarnish. The cases are marked WRA .38...