Harry Callahan (Clint Eastwood ... beginning with 1971's "Dirty Harry," the titular lawman uses the revolver to take down serial killers, terrorists, corrupt cops, and gang members.

Eastwood's character also helped popularize the .44 Magnum, as Harry Callahan is famously shown wielding his Smith & Wesson Model 29 revolver.

Eastwood's character also helped popularize the .44 Magnum, as Harry Callahan is famously shown wielding his Smith & Wesson Model 29 revolver.