Steyr Aug: Austria, 1960, Carbine/Machine Gun/Sniper (yes, a multi-purpose rifle, indeed!!!), 3 Firing options: Semi-Auto, three round burst, auto. 5.56×45mm NATO round.
Steyr IWS 2000: Austria, '80’s, Anti-Material Bulpup, semi-auto, AMR 5075 cartridge (14.5mm) or IWS 2000 cartrigde (15.2×169mm).
Austria is not that far from Sweden, so it is not unlikely, that Austrian weapons got that far.
Thoughts?