I support gun control, but that's kind of the default by now where I live. At this point in time, I think the US is too set in its ways to ever relinquish its firearms. A large portion of the culture holds through the Second Amendment (which would be IIRC really difficult to ratify?) that they have that right to bear weaponry. And overturning one of the founding values of a country is bound to be hard.
Look at where I live, Australia. We actually started with some form of gun control (what can you expect, at the time more than half of us were criminals), though it was really limited because firearms were necessary in order to deal with Aboriginal raids (a touchy subject of which I don't really want to go over right now). As society continued to build, guns continued their only light restrictions given that civilians still had to deal with bushrangers (and duel, which is badass but not particularly healthy) and prepare rudimentary defenses in case of invasion. For a long time, gun laws were governed on a state-by-state basis.
After World War I, the rise of communism and the whole 'red scare' deal had a profound effect. While in the US I understand this meant citizens felt more driven to protect themselves (Not sure on this, feel free to correct me US guys) it inspired a more 'they could be any one of us' fear in Australia, and logically that meant that the best way to deprive communists of guns was to deprive citizens of guns. Of course, this was still on a state-by-state basis.
True nation-wide gun control didn't come in 1996, when a
horrific shooting (with 35 dead and more injured) prompted instant action. Gun laws were tightened. It didn't quite finish the job, though. The laws were modified again in the early 2000's after another shooting or something.
So here gun control had been a long time coming, it'd tightened its grip on society over the entire nation's history. Even then there was controversy (I remember reading somewhere that to stop the 1996 laws being passed, a bunch of shooters tried to
join the liberal party. They were rejected, even when they
took it to the supreme court.) Fun fact: Prime Minister John Howard wore a bulletproof vest when he announced the laws to the public.
For similar revolution to happen in the US you need a majority in Congress, right? I don't think that's gonna happen for a long time, if ever.