I've never owned a 629. But I've shot them...
Not right for my hand. My Redhawk though, I've had for years and constantly fed it the same loads I shove through my Ruger SBH. 300gn Seirra's pushed by 19gns of AA#9, or the same bullet pushed by 22gns of Win296. Through my pistols, that's a 300gn bullet running 1170fps. Like P95 is saying, not that the 629 is weak by any stretch, but the Ruger is a tank. And the trigger out of the box,,, Yeah, the Smith might have a slight edge there, but over time, as mine has worn in, and I've changed the hammer spring to a Trapper version- It's hard to beat. Really hard to beat.
-Steve