..the reason why they shot the Stockwell tube "bomber" five times might be that a pistol like the Glock 17(I think) that fires bursts of three rounds as well as single shots, rather like a tiny submachine gun, was used. The point is that, if you need to be sure the target is dead (for example, because they are a suicide bomber) in a confined space, most weapons that would do it would probably also go straight through them and kill one or more random civilians. Using a much lighter round, but several of them, is a way round that.
Cricket update: Aussies now 140 for 3 after we were out for 155. Not critical yet, but we've got to cage the buggers quick or the run chase is going to be pretty tough.