Evening again loconius,
Ah, okay that cleared up the original question, so here is another go at an answer. Referring to Chapter 12 Design sequences p 272 Available Turret Weapons Table:
Laser Range
Mining 15,000 km/Close
Beam 30,000 km/Short
Pulse 45,000 km/Short
"Range: The range at which this weapon may engage without penalty."
Chapter 8 Combat Starship/Spaceship Communications, Sensors, and Weapon Ranges p154:
"For each range band past a system's standard range it suffers a -2 penalty to any skill checks, attack rolls, etc., and any damage roll is reduced by 1 die."
Hope this one is more helpful