8 mm Breda with Magistri bullet

Since it isn’t a common item in Italy I would like to know if it is easy to find on the american collectors market

In USA I don’t know, but I found in France boxes of them ten years ago.

They are not very common in the US, but not rare.

That’s probably because these cartridges were used for a long time.Maybe one headstamp or version is more common than another,like any other cartridge