Earlier quoted context omitted.
Doesn't 'strict control' imply that few legally detain guns? Gender Inequality Index: #1 (best nation) is Switzerland. This country is shock-full of firearms, there is an assault rifle in many (most?) homes (a weird way to 'control', in my opinion). #2 is Norway, where 9% of the population legally owns 1.3 million guns (population: 5.4 million) #3 Finland. 12% of Finns legally detain a firearm
Switzerland's famous assault rifles are not kept with ammunition, and are mostly useless. (I suppose you could bludgeon a home invader with one.) Firearms are more heavily regulated there than in most of Europe. "He shakes out the gun holster. "And we don't get bullets any more," he adds. "The Army doesn't give ammunition now - it's all kept in a central arsenal." This measure was introduced by Switzerland's Federal…
https://www.quora.com/How-hard-is-it-to-get-a-gun-in-Switzer... is a good discussion of Swiss law.
TL,DR: Swiss law is different than U.S. law, and it's hard to generalize as each is more or less permissive given different areas (and the U.S. is really 51 or 52 little countries in most senses, as Switzerland is divided into Cantons).
Concerning ammo specifically: https://www.reddit.com/r/askswitzerland/comments/7xug8k/ques...
TL,DR: One can buy ammo freely at ranges and with minimal permitting to take home. It sounds like maybe the Army wanted ammo stored centrally such that it would be in controlled environmental conditions, and not lost or accidentally used up at a Schützenfest.