This_Is_My_Boomstick!!:
http://ca.games-workshop.com/whitedwarf/download/2006Errata/2006Erratta.htm
and it mentions chaos dwarf blunderbusses in the rulebook section 
occording to it and on here you dont need los to stand and shoot at charging enemys, bit mad
http://warseer.com/forums/showthread.php?t=139836&page=3
