There is a lot of BS about the strength of revolvers. The S&W heavy frame handguns have been around since the Number 3 models of the 1880s. The modern concept of heavy duty handguns is totally based on the S&W "S" and "N" frames. The .357 in 1935 and the .44 Mag. of 1956.
I have owned and shot most models of modern heavy handguns. Where are all these failed and crashed side arms? After over 50 years if the S&W 29 was so fragile there would 1,000s of broken 29s at every gun show? The Mdl. 29s go up in price more than any other heavy hand gun. Western outdoorsman shoot heavy loads in these firearms most of the time. Where is the "Elephant Grave Yard" of all these failed S&W handguns? These stories are passed on by the gun shop experts. These fellows are there every Saturday giving out their advise.