[wysiwyg]

HELLO! STUPID! Smokeless powder is a propellant, not an explosive. Do they also propose that hobby shops with model rocket motors for sale should also fall under similar regulations?

[Wonder Warthog]

"Do they also propose that hobby shops with model rocket motors for sale should also fall under similar regulations?"

They already do. The BATF long ago started regulating hobby rocket engines above a certain size. I haven't studied the issue in a while, so they may, in the interim, have extended the regs to ALL model rocket engines as "explosive devices".