I've used W244 in the 45 Auto and 45 Colt. Hodgdon lists loads for cast bullets, but in both cases I was using Berry's plated bullets; 200gr in the 45 Auto and 230gr in the 45 Colt. My loads were in the middle of the data range provided by Hodgdon for the same weight cast bullets.
I didn't do exhaustive testing, but both accuracy and velocity (consistency) seemed good. If it matters to you, those midrange loads tend to stain the cases a good bit. I find that fairly typical for standard pressure 45 Colt loads, but the 45 Auto loads seemed to stain the cases more than an average amount for that cartridge. Even so, I've continued to use that 45 Auto load since it shoots very well for me.
Don't have a 41, and haven't tried it yet in the 44 Mag.