If any one can tell me where to buy the AN fertilizer for tannerite I would greatly appreciate it. However, please don't post it in an open forum. Send me a private message which I will reply to withu my email address which is a military email address. Hopefully, this will make it so you can rest easy. While traveling for the military in Dec. I was in Denton Texas and purchased 33-0-0 fertilizer and when I told the guy what it was for he said it would work then I get back to california and mix it with the AP and shoot with my AR but nothing happened. This caused me to do the research and come to find out he sold me American Plant food corp 33-0-0 ammonium sulfate. Damn I hate being ripped off. However, I still want to make these targets to shoot when my friends an I go out to the desert. If any one could help I would greatly appreciate it.