The weapon Clint Eastwood uses in "Dirty Harry" was a .44 Automag.

The answer is false because the weapon that Clint Eastwood uses in Dirty Harry is a .44 Magnum revolver, not a .44 Automag. The .44 Magnum revolver, specifically the Smith & Wesson Model 29, is famously associated with the character of Dirty Harry Callahan and became iconic due to Eastwood's portrayal of the character in the film. The .44 Automag is a different firearm altogether and was not used in Dirty Harry.