I didn't realize this is an old thread when I started reading it, but someone mentioned that so I was watching to see if I'd ever posted in this one. If I have, I didn't see it.
I have two loads I like for .41 Mag, shooting the Lyman 410610:
14.0 grains of Blue Dot, and
18.0 grains of 2400
I have had a new RCBS .41-210-SWC mold for three or four years, and it has never even been heated up. I think that will change very soon...in fact tomorrow I'll be casting a few 358156 and 358429 to see which one works best in the single unfamiliar-at-best .357 revolver remaining in my safe. I think I have a bunch of 410610 ready to roll, but I need some of the non-GC for testing another relatively new resident of my safe, a three-screw Blackhawk.
Thank goodness I finally got new eyeglasses---I think I may be able to actually shoot a handgun again after a three year hiatus. Between the eyeglasses and this new forum, my enthusiasm for handguns is rekindled!