This was rated MOSTLY FALSE: Says "President Obama is using executive actions to impose gun control on the nation, targeting the top-selling rifle in the country ... with a ban on one of the most-used" assault rifle bullets. Paul Bedard - wapo reporter http://www.politifact.com/punditfact/statements/2015/mar/04/paul-bedard/columnist-obama-presses-gun-control-t/
(politifact): ...{bedard's} talking about the ATFs plan for one particular type of bullet -- a 5.56 mm "green tip." It is found in SS109 and M855 cartridges, and its one of the more popular types of ammunition in America, experts told us. But this February, the ATF announced a proposal to remove an exemption that allowed gun owners to use this particular kind of ammunition. The agencys reasoning? It can pierce the sort of body armor often worn by police, and it can be fired from a handgun.
The ammunition isnt new, nor is its ability to pierce body armor. What is new is that gun manufacturers are making handguns that use a 5.56 mm "green tip."
That, ATF says, violates the Law Enforcement Officers Protection Act of 1985 that aimed to ban armor piercing bullets.
"The AR-based handguns and rifles utilize the same magazines and share identical receivers," the ATF wrote.. "These AR-type handguns were not commercially available when the armor piercing ammunition exemption was granted in 1986. To ensure consistency, upon final implementation of the sporting purpose framework outlined above, ATF must withdraw the exemptions for 5.56 mm "green tip" ammunition, including both the SS109 and M855 cartridges."