I will add my 2 cents worth. I have 9 .44 Mag revolvers and a desert eagle semi-auto. 1 super redhawk, 1 super blackhawk, and the rest are S&W 29/629's.
I have the exact same model that you have and I have mounted a scope on it for load development purposes and for shooting the chickens and pigs and rams for fun.
For flames you need 2400 powder, usually in the 20-22 gn department gives a really nice show.
For accuracy any 245-255gn Keith bullet sized to .430-.431 with 8 grn of Unique will get you in under an inch for 6 shots at 25 yards with open sights and if you do your part. It is the load by which all other 44 mag loads are judged against. It is a nice mid power load that will go easy on your shooting iron and your wrist and your wallet. I can easily ring the 50 yard 6" gong 6 for 6 offhand. Blows peoples mind when they see me do it, nothing great just a really accurate load in a superb revolver, but hey they don't need to know that,lol.
For more kick and smoke than the 20-22 gn 2400 with the same bullet is what the full power loads are judged against. This load is just as accurate but then the shooters experience really kicks in to see if they can get the accuracy without the flinch.
As far as kick goes with full house rounds the easiest on your wrist is by far the super blackhawk. You shoot a 629 with a full house load and then use the same rounds in the blackhawk and you get the same flash and smoke but the recoil is more pleasant because of the single action handle that actually rolls in your hand. You can shoot 3-4 box's of full house ammo in it where 1 box is enough in any double action revolver.
As far as reloading costs go, 8 gn of unique and water quenched WW bullets will run about $3.50 (7 cents a round) a box after the equipment/molds etc are paid for. That is not much more than a box of .22's and a lot more fun.
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http://www.handloads.com/calc/loadingCosts.asp with $30.00 for powder, 8 grn per round, $35.00 per 1000 for primers and nothing for the case or bullets) In case people wanted to do the math for themselves.
The only model 29 that I am missing is the 4" Nickel version, had a couple show up on the EE but they wanted to much and I am a patient buyer. Lots of fun.