Well, I have considerable experience shooting .44 Special. However, I do not shoot .44 Specials in my .44 Magnums as I shoot them in my .44 Specials. I currently have two Ruger Flattop .44 Specials (a SS 4 5/8" barrel and a blued 5½" barrel).
My most used load is the Skeeter load (7.5 grs of Unique behind a 250 gr Keith - a home cast Mihec version of the H&G #503). I also shoot a goodly number of a group buy .44 waductter (200 grs) ahead of 4.0 grs of Red Dot or equivalent for a nice target load. It also works quite well for edible small game. If my .44 Special load won't shoot under 1" at 25 yards off a rest, I am disappointed. I am seldom disappointed with my Smith Model 24, two Smith 624's, a Cimarron single action, and my two Rugers mentioned above. .44 Special is one of the best field loads available.
Just so you know, I have nothing against shooting Specials in a Magnum but as I don't need to, I don't. If I only had one gun, I would certainly not hesitate.
FWIW
Dale53