As a woman who believes in not being a victim, I have a few weapons at home for self-defense. One of them is a Mossberg 500 20-gage shotgun. I spend quite a bit of time at the range firing the shotgun, and my other firearms as well. When I come home from the range, I wash my hands and face thoroughly. There is quite a "smell" to gunpowder. However, I also wear a lot of silk-cotton blend shirts (I love silk), and they're hand-wash only. My question is, does gunpowder residue get picked up by the TSA sniffers? Surely, I can't be the only citizen who owns a shotgun and also flies from time to time - and wears silk shirts??? Thanks for the replies.