My dealer gave me a box of .357mag "Super-X" with the S&W m66 I just talked him into selling me (his personal gun). He said it is pretty hot loaded stuff. They just came in a brown paper box with a printed band around it that just says "Super-X .357 magnum, handgun cartridges" on it. I am thinking they might be re-packs of the Winchester rounds, like Double Tap or something. Anyone ever know of anyone doing that?