Tom Sizemore Dropped From USA's 'Shooter'

Tom Sizemore was hired because he's a good dramatic actor, but he was just fired for too much real-life drama in his personal life.

Production sources at USA's "Shooter" tell TMZ ... producers fired Tom after his arrest 2 weeks ago for allegedly beating his girlfriend.

You'll recall ... last month he ran over a stuntman on set. He and his manager parted ways over money disputes and drug use allegations.