They will figure it out and they will go after hunting rifles also anyway. The ultimate goal of anti-gun people is the total removal of all guns in the world. Since they can't magically remove all guns they would like to create laws to inhibit law abiding citizens from owning any guns. They don't care that criminals never obey those laws anyway. In some states it is easier for a criminal to get a gun than it is for law abiding citizens to get one legally. All it take is money for a criminal to buy guns stolen from anywhere including military armories.