Well, dear old granny never fails to amaze me. She pulled a revolver out of her nightstand and asked me to find ammo for it. When I saw "Husqvarna", I thought "This is a strange looking chainsaw..."
From what I have found, it fires "7.5mm Swiss Army", which is interchangeable with 7.5mm Nagant.
Here's a link to the same gun that someone else has sold:
Maybe I'm just out of the loop, because I didn't know Husqvarna made firearms, but I thought it was an interesting obscure revolver! Anyone know more about this thing?