Primary arc and bullseye mechanic around obstructed shots

[disco9100]

When firing a primary attack at an enemy ship we measure closest point to closest point. What if this is unobstructed but you would like to use a mechanic like marksmanship that uses bullseye for the condition and with bullseye that line of fire is obstructed. Would it then count as an obstructed shot? 

[Kris M]

No, when performing an attack, the attacker measures range from the closest point of its base to the closest point of the defender’s base that is in the attack arc.
An attack is obstructed if the attacker measures range through an object.