Here is a bit that I have read about it.
..The K 22 was an immediate success with well-heeled sportsmen as well as police and military training programs. Supica –Standard Catalog of Smith and Wesson records that an Army team took several K 22s to the 1932 Olympics providing an early launch into the mainstream target circuit. By 1940, shooters or agencies had bought 19,500 of the first model and a second model was in the catalogues as “A replica of that favorite, the .38 M&P Target Revolver” (Stoeger-Shooter’s Bible). By this time, it had become the K 22 ‘Masterpiece’ and was firmly identified with organized target shooting.
You can read the rest of the review here.