The main concern in Swiss, was the percentage of suicides using millitary rifles and pistols. Having these millitary weapons stored centrally, instead of at people's home would reduce this percentage. Ofcorse doing so, might not help suicides, since their are more ways to kill yourself.

This has nothing to do with criminal use or self defence (individually).

Exactly. So where is the benefit if someone kills themselves by stepping off a cliff instead of using a gun?
qjs

There are plenty of stats related to gun deaths such that either side (anti-gun and pro-gun) may support their cause. I've come to realize there are thousands of causal factors that influence crime and deviance. To take a single variable and promote it as the prime mediating variable of the resultant data, in spite of hundreds of other functioning independent variables, is beyond misleading. A small, wealthy, homogenized country like Switzerland cannot be compared directly to the open bordered melting pot of the U.S. by using a Tic-Tac-Toe type of analysis. We'd have to graduate to a 3-D Chess type of analysis, but then how many people would understand it?