Ah Ha!

I knew there was some reason I like both wine and NE cartridges. Perfect.

Would also the 'popping of the cork' out of a champagne bottle also have some resemblance to firing a large round nosed bullet out of a cartridge (?).

PS I carefully ease champagne corks out with my thumb over the top so as to get all the wine into the glasses

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PPS Sorry to interrupt your verbal discourses. In amongst it all many of us learn things from the two of you.