^^^ I buy it by the case from Dixie Gun Works.
You want to use it two ways:
(1): Straight, in which case it is a clear liquid, used for mopping down a bore as the last step in cleaning, splashing on a rag to wipe down exteriors, etc.
(2): Mixed with water, whereupon it makes a milk-white emulsion. This is great for scrubbing out bores, etc. Heat this stuff up and you have a super good bore cleaner.
It really is good stuff.