Many years ago, I had a conversation with Roy Jinks about this very subject. He told me that he was the guy who put the guns together for the movie and that they were indeed Model 29-2s. There were two real guns, one with the 6 1/2" barrel and one with the 8 3/8" barrel. The longer barrel was used for the close-ups looking down the barrel. In response to the question of conversion, he didn't know but said that they were .44 Mag when shipped to Stembridge but it
could be that Stembridge converted them to shoot 5-in-1 blanks for the movie.[/QUOTE
If this is true than there is no missing gun from the first movie.Eastwood has a 6.5 in his nightstand.And Smith & Wesson has the 8.3/8 on display in Springfield.John Milius donated the used 4 screw which had been giving to him after it had been reblued. ( note the use of the red backdrop to hide the missing blue from the barrels tip in a Magnum Force) The one from the Enforcer in poor condition is also on display somewhere. The 29-2 with the six inch barrels from the last two don't appear to much interest to anyone. That leaves the automag to be found.