What about Finland or Switzerland? Both have very high personal gun ownership rates, but incredibly low gun violence. How do you explain that?
Second, the legislation is very strict. You need to have a reason for owning a gun; hunting and shooting sports are valid, personal protection isn't. You need to belong to a relevant association (such as hunting clubs or shooting clubs). You need proper locked storage in your apartment. Carrying a gun in public without a reason (such as going to a shooting range) is forbidden, and even then should be minimized.
Should you violate any of these conditions, you're liable to lose your gun license and all guns will be seized. Also the police may revoke the license on suspicion of violent behaviour.
So, if you want to get a gun, you have to live squeaky-clean. Illegal guns are of course another matter.
The end result is a small minority having multiple guns per person, the majority not having any, so citing Finland as a country with high gun ownership is misleading.
About gun ownership in Finland, Wiki tells me:
> There are approximately 1.5 million registered small firearms in the country. Out of those, 226,000 are short firearms (pistols, revolvers) with the rest being long firearms (rifles, shotguns). There are approximately 650,000 people with at least one permit, which means 12% of Finns own a firearm.