In a study published a few years ago by the "Harvard Journal of Law & Public Policy", they found that Norway has 0.81 murders per 100.000, while Luxembourg for example has 9.01 murders per 100.000. What makes this interesting is that Norway has 36000 gun owners per 100.000, while Luxembourg basically has none!

Bare in mind that it is illegal to carry or use guns for personal protection here, but what the report showed was that a high number of legal guns in the population has nothing to do with creating more violent crime. Since most criminals have illegal guns.

FWIW, the report said that the US has 5,6 murders nationwide per 100.000, which was a significant decrease from the previous 15 years, where the number (nationwide) was as high as 10 per 100.000!

Russia on the otherhand has about 4000 gunowners per 100.000, yet has 20.54 murders per 100.000!

It also showed that a few years ago when there was apparently an increase in US states that allowed concealed carry, the number of violent crimes and murders decreased significantly.