"
One thing Eastwood's character admitted in Magnum Force was that he had it loaded with .44 special rounds."
In the indoor range sequence, Callahan is asked what kind of load he uses in "that" .44. His reply was "a light special" which gives more control in that sized gun than a .357 magnum with wadcutters. He didn't say that they were .44 Specials.
B.