I mean, he didn’t really have much of a problem with accuracy - he fired a total of 1058 rounds, and those rounds or shrapnel from them injured 413 different people. Of course, many people received more than a single gunshot wound. He killed 58 (later 60) in ten minutes of shooting – effectively one person every 10 seconds. I think it would be difficult for a single person to injure or kill more from where he was standing with any weapon short of an RPG.