We were waiting in Hawaii a few years ago for them to open the line, and ended up next to the explosives analysis machine. I asked the TSA guy what they were looking for. He took me over to the machine and demo'ed it. (it was a slow day, I was wearing a company polo and he was interested in a job
The primary components he said they were looking for that showed up on the screen were RDX, PETN, C4, ANFO, TNT and a couple others I don't remember.
I don't think gunpowder was one of them, but as others mentioned above may still set it off. On the other hand I've had my carryon bag (not range bag) swabbed after going from the range to the airport without being questioned. Must be the Boy Scout look
The primary components he said they were looking for that showed up on the screen were RDX, PETN, C4, ANFO, TNT and a couple others I don't remember.
I don't think gunpowder was one of them, but as others mentioned above may still set it off. On the other hand I've had my carryon bag (not range bag) swabbed after going from the range to the airport without being questioned. Must be the Boy Scout look