The earlier comment is conflating general Swiss firearms ownership with the service-weapon take home system in use with Swiss military conscripts.

Swiss gun owners are allowed to buy, own, and use ammunition. They may also use a privately-owned firearm in self-defense situationally, but the legal justification for use of deadly force in Switzerland will obviously be more stringent than it would be in the United States.

https://en.wikipedia.org/wiki/Firearms_regulation_in_Switzer...