Even in America what gun control has been instituted has had questionable results. For example, Chicago has the strictest gun control of any city in the states, but one of the highest murder rates. Compare that to Houston, which has some of the most lax gun control, but one of the lowest murder rates. In several notable cases violent crime has dropped sharply when concealed carry legislation was passed (in florida, I believe it was Miami or Orlando). There is room for some tweaking of American gun control legislation. But as you say, people expecting transformative results are in for a rude awakening. And in contrast, states like Vermont with some of the laxest gun laws in America have a rate of gun crime comparable to Canada