Canada has sensible, moderate gun control which works. (a) Outlaw assault weapons, pistols that hold more than 10 rounds, and pistols small enough to carry in a pocket. (b) require a license to buy a gun or ammo. (c) require that legal hand guns be registered and kept unloaded & locked away only at home or at a shooting range. (d) Allow licensed people freely to buy hunting rifles & shotguns and hunting ammo.
Implement this by requiring gun owners to register the guns they want to keep. Then sell hand gun ammo in limited amounts only to licensed people who can prove ownership of a lawfully registered gun.
Second Amendment begins with the words are "A WELL REGULATED militia " We need WELL REGULATED constitutionally protected gun ownership, not a free-fire zone like we have today.