. . . and my 29-5 also has a 6" full-underlug barrel (but I've removed my front 4-position silhouette sight to keep the gun totally quiet when I draw it in the deer woods.
I've been using this 1989-1990 full underlug + unfluted barrel Model 29-5 for hunting deer since about 2000 . . . topped with a 1st generation Holosight I had on another handgun initially. I simply cannot imagine a better deer handgun! The blue finish doesn't draw attention as much as stainless can in the field (IMHO) and it has held up extremely well.
The full underlugged Model 29s are rarer but they do exist. Most do not have the 4-way adjustable silhouette front sight on them however, but a conventional S&W front sight instead.
BTW, the handgun is pictured atop the hide of a Piebald Whitetail Buck that I took with this wonderful handgun . . . one of so, so many deer that I've harvested with this set up in the past ten years or so.
Here's one from THIS season . . .
And last season . . .
There is really no "better" revolver between the 29 and the 629. For nasty abuse, the 629 would edge out the 29. For sheer beauty and better stealth, the 29. Either way, for heavy hunting, I'd look for one with the endurance package. It is easy to see, for the cylinder bolt notches cut into the face of the cylinder will be noticeably longer to the front of the turn ring in my photo. The earlier Model 29 & 629 are even length in front and behind the turn ring area.