This isn't technically about whisky, but since Drambuie is a whisky liqueur, I figure it's close enough. ;)
I've got a miniature bottle of Drambuie here that I've just opened. It's quite nice, and doesn't taste nearly as alcoholic as most actual whiskies do, so I found myself wondering just how much alcohol it contains in the first place. The bottle says "40°", which I'd interpret as 40 proof (20% ABV); however, Wikipedia and pretty much every other source I've been looking at say it's 80 proof (40% ABV).
The only exception is this site
, which also says it's 40 proof. Can anyone shed some light on this? Are there several varieties, perhaps for different markets? Or was there a 40 proof variety in the past that isn't sold anymore nowadays?
I'm curious. :)