I've shot my fare share of hot loads in the s&w 29's, owned a 8 3/8", 4", 6" versions of the 29-2 in the past.
Used a lyman 429421 4-cavity mold and had a pile of all the free lead I could use.
Would go to the Medina gunshow and buy a case at a time of wc820 pulldown powder from Pat's reloading. 1 case ='s 4-8# jugs or 32# of mag powder (used h110, 2400, aa#9 data depending on the lot/case price was around $200 out the door).
Needless to say, I put a couple hot loads down the tube in those 29's over the years.
But I've also been a huge fan of the 44spl along with the 38spl and 357. Owned and still own firearms chambered in 44spl along with 44mag. Having said that, I have no problem making plinking loads that are highly accurate in 44mag cases that use 200gr to 250gr bullets and run in the 900fps range from a 6" bbl'd 629. Found 13 loads testing 7 different bullets using 5 different powders that will easily make major but yet are a mild plinking load that will hold the x-ring on a nra 25yd target. Any one of those loads would give you a life time of quality range time.
There's allot of power in a heavy bullet traveling at high speeds. Was playing around making some home made swaged/jacketed bullets for the 44mag. Talk about over penetration, had to keep slowing the bullets down along with going from a fn design to a huge hp that acts like a parachute slowing the bullet down as it opens/penetrates.
This is what I ended up with, a 265gr bullet with a huge hp
The test target setup @ 25yds along with the chronograph reading for those 6 shots.
I put that test target on a bundle of tightly wrapped newspaper that was soaked for 24 hours in a water bath. Set everything out @ the 25yd line and shot, the bullets started showing up at the 9" mark in the wet papers.
Anyway, bullet selection king compared to warp speed blasting ammo when it comes to the 44mag. 3 different cast bullets, the penta point (left) is an excellent hp in the 800/900fps range, the large round hp (center) 1000/1200fps and the small round hp (right) 1200/1400fps.
As others have already stated, keep your plinking loads in the 900fps range and the heavier loads in the 1200fps range and your 29-2 will last a life time. Go out and buy #32 of mag powder and go play on the silhouette field you'll find out real quick how loose that 29 will get. I did
Just another opinion.