As the title says pirates onyl start shooting at you when you get into their weapon range. This is ridiculous if you isntalled power drain on a pirate ship and someone have to be in a range of 480 meters (i think thats vanilla). Due to this concept every cannon based pirateship can be shot with Missiles without the pirate shooting back.
please change the pirate visible range or whatever you call that at least to sector size or better to the Navigation System range. If you can see pirates in Navigation System they should do that as well.
Until this is fixed any other weapon than Missile + beam is useless for pirates.