Magnus Bullets and 41 mag

Let's get this out of the way first. I have Speer, Hornady, Lyman, and Lee Reloading manuals. Now, does anyone have any data for 215grn LSWC Magnus Bullets in 41 mag. I have Unique and IMR 4227 and would like to stick with those powders as that is what I use in a 44 mag. I am new to the 41 but not reloading. I am having a hard time finding much data for a 41 mag and lead bullets. Thanks in advance.

ABell

I guess I was looking for data specific to Magnus bullets. It may not exist. I'll use the data in the Lyman manual unless someone here has some Magnus proven data.