Couldn't finish it?For example, during the days of the Galactic Republic, mercenaries fearing an intervention by Jedi Knights used rapid-fire slugthrowers that were impossible to completely deflect, unlike blaster bolts. They were also popular amongst forces looking to take advantage of the explosive nature for intimidation or to
taken from the wookieepedia article.
Using a shotgun within grabbing distance would be extreamly difficult to push back, Me thinks. You'd better off keeping your distance.