All of the Bourne movies. In the Bourne Identity, it was Clive Owen's rifle used against on Wombosi, in Supremacy it's the rifle Bourne uses to scope out Pamela Landy's operation and what Karl Urban uses to kill Bourne's GF in the beginning, in Ultimatum it's the rifle used to take out the reporter when he finds out about Operation Black Briar, and in Legacy it's the rifle Cross uses in the beginning of the movie. That's just what I remember from memory, there might be more uses in those movies.