Yes, I'm plugging my blog, but I only do it when there is a long post I don't want to re-post here, that I think Straight Bourbonians will want to read.
The post "Who Makes Bulleit Bourbon?" is here.
The gist of it is that Four Roses makes Bulleit, or so we've long been told, originally for itself when both the Bulleit brand and the Four Roses Distillery were owned by Seagram's, and since 2002 on behalf of Diageo.
Now sources at Kirin/Four Roses are saying maybe not. Diageo takes their whiskey but they don't have any way to know what Diageo does with it, and, they say, organoleptic testing confirms that Bulleit is not 100 percent Four Roses-made whiskey.
But there's a lot more to it than that. If you want to comment, feel free to do so there or here.