My 1988 Model HG-M669-B6 .357 has been used for almost every year since I bought it, never any problem... fired .38 Specials, .357 Mags, most any brand, shoots best of all I own. Kept it clean, and after thousands of rounds, still looks and shoots almost like new. Guess I just got lucky with this Brazilian made piece. Don't know if I'd want another, think I'd go for a Kimber .40, if anything. But, at my advanced age, this one will last my lifetime! LOL