Re: A massive market
"Nowadays we have a metric "fifth,""
So 750ml - or 3/4 Litre - just like most of the rest of the planet for wine / spirit in bottles. Wow @ the Americans using something that the rest of the world has actually taught in schools within the last 50 years even if you call it a "fifth"!
(Over the pond, spirits often come in a "pub" size 1 litre option too.)