The loads and bullets for 44 Russian data work very well.
DO NOT substitute load data for .44 Russian putting it into a .44 Magnum case. The case volume is substantially different.
Go get some different powder, more suitable for lower velocities, and some cast bullets, preferably lighter weight ones. A 175 grain truncated cone flat point, 180, or 200 grain full wadcutter and appropriate powder will get you where you need to be quite easily.
Lastly be careful who you take advice from.
There are a BUNCH of guys who give advice that simply are parrotting, based off of something they read somewhere else, and don't have actual experience in what they are posting. They will look something up online then regurgitate it as if they have done it themselves, which they have not.
You can go over to the castboolitforum and ask around over there for reduced loads in .44 mag brass and you will likely get a decent amount of info to get you started.
