Having had identical revolvers (Smith 29 and Smith 57) I'll tell you that the .41 seems to be a bit more accurate. Maybe it's the recoil, don't know. The .41 has always had a reputation for being a bit more accurate than the .44. Yes the .44 will do everything the .41 can do, but alot of it is reputation. When the movie Dirty Harry came out, the .44, which really wasn't doing much better than the .41 in sales, broke out and never looked back. The other reason is the .44 Magnum has a mild practice round in the .44 Special, the .41 doesn't have that. Remember that the .41 was supposed to be a law enforcement round, and it failed at that because most officers were used to .38's, and the .41 Magnum ain't no .38. So, it failed, although in few circles some loved the gun. Personally I like the .41 for personal defense (but the .44 I carried too) because with the right handloads it will do the job well.
Yes the .44 will do everything the .41 will do, but the .41 will do it style.

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