Most people see through attempts to stir up schidt...
And being disingenuous about that says a lot. It makes people stop and pause when they consider if they are going to do business with such a person..
Powders can get changed, lot numbers etc, and some bulk "cannister" powders are available to manufacturers that don't ever get a label and sold publicly. The short version is that it is a well established recipe using a canister powder that shoots nice tight groups and was used back when PPC was big. It was simply known in PPC circles as a match load.