It was purportedly (and probably in actuality) intended as a survival aid to be used after landings and before recovery in the Siberian wilderness, although allegedly was intended as a defensive weapon against in-space attacks by the US space program.
Because space is haunted. And buckshot’s superior spread helps ensure a hit while spinning around in zero-g. Solid slugs would go straight through the soyuz walls, duh.
It’s the sequel we’ve always wanted to Abraham Lincoln: Vampire Hunter.
As long as it’s about Buzz Aldrin and they’re Nazi ghosts.
https://en.wikipedia.org/wiki/Iron_Sky