I just started reloading and am working with the .44 mag too. So far I'm working up loads for cast 240 grain and 200 grain bullets (Oregon Trails Lasercast brand). Here is what I've done with the 240's, with luck I'll get to the range tomorrow to test the 200 grain loads.
http://thefiringline.com/forums/showthread.php?t=485019
The guys here are a great help and I'm certain I'm not the only one who appreciates their input and benefits from their shared experience.