I have had real good response from the Black Mag3 people. I think they had a small problem with their email as I didn't get an answer but they called me back so we were able to talk. I am getting a lot of information and have shot a small amount of the powder and if you have any specific questions that I might be able to answer I would be open for them. You can contact me direct at [email protected]. I like APP but I LOVE BM3.