I dont know the exact details here. Off the top of my head ypu need to take a rigourous governemnt adminstered just to own a gun, and then another gun to use it. If you think about it, the two courses are going to run the participant a couple thousand dollors, so this will a deterrent to all. but the most dedicated. Another deterent, something to consider, is that these course require at least a grade 10 reading comprehension in order to succed. This keeps many people from taking the course who do not have those reading skills.
Anyway food for though. This is what proper gun control looks like.
*Edit: government adminstered course. Another COURSe, not gun. I just kept it because it funny