The new legislation, dubbed the Stop Online Ammunition Sales Act, rests on four pillars, according to Lautenberg's office:
It requires anyone selling ammunition to be a licensed dealer.
It requires ammunition buyers who are not licensed dealers to present photo identification at the time of purchase, effectively banning the online or mail order purchase of ammo by regular civilians.
It requires licensed ammunition dealers to maintain records of the sale of ammunition.
It requires licensed ammunition dealers to report the sale of more than 1,000 rounds of ammunition to an unlicensed person within any five consecutive business days.
Buy two value packs of .22 ammo? You get reported. Get a deal on some 7.62x39 or .223 or 7.62x54 or whatever and grab the case? Get reported.
And don't forget, this will act as a backdoor registration system. "So, citizen, where's the gun you bought all that ammo for? " Etc.