Just caught some fall out, However the title is as TRUE as it is False. I am going to explain, Wads are Lubricated contain some form of grease, be it animal or manufactured Now I load today and shoot today there is no issue but say you live in a State,Country or Jurisdiction that only allows Black Powder Carry or can only afford black powder hand gun and the powder/substitute remains in contact with the lubricated wad. YES there is a level of contamination how much or how bad depends on a lot of different factors, temperature, body heat, humidity so on and so fourth. So yes if you are in the position as described, you may need to shoot em every few days to keep the powder/substitute good when using a lubricated wad. But alas I will digress and say to each his own. Because grease that melts under normal circumstances is just crazy.