FYI, Qassams are particularly good at *not* going where they’re supposed to. Only about one in five actually goes in the direction it’s supposed to, and the rest either go off course or land way short inside Pali-Land. From AFP: http://www.astandforjustice.org/2005/11/11-07.htm
And that’s not counting the numbers of Qassams that explode on launch (i.e., take out the launching site all by themselves without going anywhere). This has made Qassam crewing a distinctly unpopular duty, and has lead to the use of remote launching systems (crew drives to an area, sets up the launcher, runs a couple of hundred feet away, hits the remote trigger, runs back after the thing hopefully launches, throws the gear in the back of the truck and flees the area before the Israeli counterbattery fire arrives.)
Ah, I did not know any of that. Thanks for the info, Spktyr.