Arkrosh wrote:
I'm not sure whether this is the correct place, but in a WSIM game (656206, Basic Rules) both players can select Hull or Rigging as target but only Riggings will be shoot at.
This is the correct place

From the rulebook:
Rule VIII.B.5: The player firing now decides if the fire is to be aimed at the hull, or at the rigging. If the range is six hexes or more, the fire must be aimed at the rigging.
So here on Youplay if you choose hull but the enemy ship isn't near enough, your shots will automatically aim at rigging.