The military definition of "armor penetrating" differs significantly from Diane Feinstein and the press' definition, with the bulk of people falling somewhere in between in their understanding of what that term means. Most FMJ CF rifle bullets will defeat the soft body armor a police officer wears, but that doesn't make them AP rounds because the intent of their design was not to defeat soft body armor, it just happens that the armor is simply inadequate to defeat the projectile. Actual AP rounds are designed with the purpose of defeating a certain level of armoring, utilizing special materials, construction and treatments to increase the effectiveness of the projectile on said armor allowing it to penetrate that which it could not penetrate otherwise.

Mike