Had some hornady one shot come in today. Sprayed and cleaned the brand new .380 dies and was amazed at how much came off of them even after tumbling and cleaning them with alcohol. Decided to tear apart and clean my 9mm and 38/357 mag dies. Wow I was amazed at how dirty they get. They have only processed around 750-1000 rounds and they were just dripping black. These were processing not cleaned brass. This stuff is great!