your better stay in good relationship with this man, what price did he sell his powder?
if the quality of the blackpowder is only average - its better than being not able to find anything at all.

back to ammonium nitrate blackpowder, it looks like he finaly find a mixture that burn quicker than swiss and is also cleaner https://www.youtube.com/watch?v=ooyNYIiJmEI

well, my own humor would like the toilet paper blackpowder more