ATF is banning the popular 5.56 mm bullet because they say it can be used in a handgun and can kill a cop by going through body armour. This is a rifle bullet hunters use. A law governing cop killer bullets is being used. DOJ says it can ban bullets that can be used in a handgun that goes through protection. Such bullets have been exempt because they were deemed for sporting. Many rifle bullets could be used in handguns. Bambi and gobblers rejoice!