"THE CONSTITUTION" of the United States did not Adress "Hunting" guns.
It addressed "Assault" guns. When the 2nd Amendment was written the British Brown Bess & the French Charleville were the two primary Assult guns of the day & They "WERE INCLUDED".
The Militia mentioned in this amendment was NOT the standing army, it was the Citizens (People) of the USA. The Citizens could not form a "Well Regulated Militia" if they had not the Arms to train with, thus the addition of the 2nd Amendment.
Most people of the US realize this, unfortunately those who are Strong Anti-gunners realize it even more so than many others. They also are well aware they have no chance of amending the constitution at present so they try by all means possible to by-pass it. One method is by Splitting gun owners by convincing "THE GULLIBLE" they have no need or should not even Want a military-type arm. One has only to read here on a "GUN FORUM" just how many fall into that "Gullible" category.