Models can fire twice up to 12" if they have more or not, if they stand still... they can shoot once up to their weapons maximum range.
I'll need to dig my Necron codex up (it's under about 4000 points worth of sprue). I will be back later.
Dark Angels 1750 win/loss Record
Win - 23 (Belial helped wreck Ryan's puny Eldar)
Loss - 13 (Brice's Necrons wiped me)
Draw - 2 (The 13th hold out in alpha take and hold)