I had one of these 38 Supers the first year they came out, can't remember when that was but it's been probably 20 years ago & it would not shoot anything I put in it. And I stayed with it for a long time, Bob told me he had one & had the same problem, they just would not shoot. Both of us got rid of them. I also had one in an 8 shot 357 on the N frame.
Then I found this one about 5 years ago & took a chance on it, knowing the history of them, at least some of them. This one is a real hummer with just about any load I feed it. A good cast bullet, sized a bit larger than my 1911's is the trick & it sings like Sinatra! I think it took 3-4 rounds of boxing to get it back from Bob.

Dick