Going off the topic a little, since you got your answers already.
Mike, don't forget to change the battery on your lazer rib, the humidity in New Orleans & Italy is not battery friendly. Welcome back, we missed you. Since your old buddy MX-8B will not be joining us here, life will not be the same without you. LOL
Regarding your comments on the non-export of slightly larger 12 bore barrels:
There's been quite a few 10 bores made in Italy over the last 20 or so years, mainly (or perhaps only) for export. It's strange that there should have been some sort of regulation stopping the export of .736 12 bore barrels.