Please be advised that ATF has not rescinded any armor piercin g ammunition exemption, and the fact they are not listed in the 2014 online edition of the regulations was an error which has no legal impact on the validity of the exemptions. The existing exemptions for armor piercing ammunition, which apply to 5.56 mm ( .223) SS 109 and M855 projectiles (identified by a green coating on the projectile tip), and the U.S .30 - 06 M2AP projectile (identified by a black coating on the projectile tip), remain in effect....Bullsh!t. There was no 'publishing error'. They were just hoping noone would actually slog through hundreds of pages of boilerplate and beaurocracieze and notice it missing.
ATF apologizes for any confusion caused by this publishing error.
HT to Dave Hardy