The Ruger is stonger - especially a SRH. However, the 629 has a MUCH better trigger and reputation for accuracy out of the box. I have a 629, 6" and love it. You're not going to break a S&W with normal or even hot .44 mag loads. Only think I wouldn't shoot in mine (for cylinder spacing issues vs. strength) is Buffalo Bore's 340 grain +p+ load. which the Redhawk will handle well.