On the old fourm someone was looking for loads for 41 mag using a Lee mold. But they didn't say what grain weight they were casting. There are lots of good loads in the Lyman books, and I've found loads on the internet but we gotta know what bullet weight. Paco Kelly has provided me some advice and I think both Beartooth Bullets and Cast Performance bullets offer loads for heavy bullets (250-300 grain). Check all the powder manufacturer's websites - they have good starting info.