Complex sentence: The main armament consisted of a Bofors KV90S73 90 mm L/54 rifled low pressure gun, firing HEAT, armour-piercing and HE rounds, in a well sloped revolving turret which gave protection against projectiles up to 25 mm in calibre.
Split into simpler sentences: The main armament consisted of a Bofors KV90S73 90 mm L/54 rifled low pressure gun, firing HEAT, armour-piercing and HE rounds. A sloped revolving turret gave protection against projectiles up to 25 mm in calibre.