Fed is trying to make some wierd point that an ar-15, in .223 has a combination of firepower, calibar size, small recoil that enables it to be slightly more deadly then say a .308 which has more firepower but a person may not squeeze and many rounds on target in the same amount of time.
I will conceed that but not sure what it proves when the amount of people killed by rifles is so very low. They just aren't really a problem. No one can prove or logically show that legislation on ar-15s could possible make us safer. How can people be scared of only 400 people a yr being killed by rifles? more people drown.