Right, should note that I'm a little biased towards PRGs. High speed, high rate of fire, low consumption. Great turret weapon to fend of fighters; a PAC or HEPT is never going to hit the faster ships. Some M5s can actually outfly the projectiles.
There's also the PBE, but that's powerhungry and lacks range. Nice in bigger ships that have the generators to power them though.
* oooh, asteroid with over 100 yield. Let's see; 50 units per minute, that's 3000 every hour, and that means... 150 hours untill the 450k needed.
Think I'll build a few more mines.