You knew it wouldn't take long
Background checks for smokeless and black powder.
One of the gun grabbers dreams.
Of course, it is sponsored by Lautenberg, one of the perpetually pants-shitting liberals.
Do these people not realize how many recipes there are for low order explosives? How easy (relatively) they can be to make? How many people know how?
Betcha this gets used to limit the amount of rounds you can buy or legally possess because of the powder they contain.
Bet on it. It is a logical extension.