Seems to me I read that elmer keith claimed the .44 special hit to the same point of aim with light or heavy bullets. Doesnt make sense you would think but I once experimented and thought it so too. Another cartridge I read that about is the 7x57. In mine I found it also would shoot different weights to the same poa.
I dont know how many ways I can say this: First, the special can be loaded up to do probley 95% of what the mag can do. Of the other 5% I wouldnt be surprised if there would be less than 5% differance in the outcome of game shot with it.
The guns made for 44 special all handle like sweethearts compared to the heavier straight barreled 29s.
Another cartridge in the same catagory is .45 colt. However, here again, there is hardly any differance at all, if any in weight between the model 29 and the model 25 as both have the same heavy, straight barrel. The thing with the 45 colt guns, is the scary thin metal under the clyinder notchs. The .45 colt does good work with the larger volume case with less pressure counteracting that concern. Another point against the 45 colt as opposed to either the 44 mag or special is the fact that for whatever bad reason, it seems that there are many guns out there with the wrong either too sloppy or too tight throats to bore measurements. Seems even colt cant get it right. I dont know why companys seem to have such a problem getting it right!
I have 4 or 5 .45 colts. Some are right, and a couple wrong. It can be overcome by getting the right bullets, but they are hard to find. It seems the .44s whether special or mag doesnt have that problem. If you can find a good .45 colt in a model 25-5 (I have one), or ruger or colt saa, then you have just as good of a gun as any smith.
I recently bought one of those ruger flat tops in .44 special. They also make em in .45 colt. I bought mine for about a $100s under list. If you like a single action they are hard to beat for the price!