41 Magnum loadings are typically about 2 grains less than 44 Magnum loadings. Is this a significant difference? NO. Given the differing diameters, the loadings are near identical, except that the 41 can drive a bullet of similar sectional diameter about 100+ feet per second faster than a 44 Magnum.
It makes no sense to buy a gun based on a 357/44Specil/45Colt frame and expect it to be a 41 or 44 Magnum, when there are magnums readily available in very compact models. Just yesterday, I saw a 44 Magnum Taurus that is not much bigger than a SP101 in the used gun show case. It is pretty obvious that the owner probably shot a box of 44 Magnums through it rather than 44 Specials and said, "To Hell with this thing!" and put it up for sale.
Many owners of Magnum revolvers frequently load them into the Special or slightly above Special range (800 to 1100 fps). This produces a very useful combination of relatively light recoil that is pleasant to shoot and excellent accuracy. Your Ruger 44 Special has that virtue. By giving up the Magnum rating, you are gaining a light weight compact revolver covering 90% of what a full power Magnum will do. Every gun does not have to be capable of hunting grizzlys and I havent noticed any in my neighborhood or in the areas I hunt. In any case, state wildlife regulations frequently spell out the word "MAGNUM" and 7 1/2"BARREL in defining LEGAL ARMS. Your 44 Special is not a magnum and never will be. I would appreciate it for what it is, a fine useful revolver.