The good is that I don't believe there were a lot of them made. The bad is that I think they may have had feeding issues. The .44 Mag. is, of course, a pistol cartridge. It does very well in carbines/rifles that are designed around pistol-length cartridges, such as the '92 Winchester or '94 Marlin. It doesn't do as well in rifle-length designs. I've never owned one, and could be mistaken on this. At any rate, congrats.
I have both a Winny & Marlin .44 Mag . I tested both with the SWC's I had been casting & loading for the S&W wheel gun .
Neither feed well .
Decided to leave the Winny NIB and put it away .
Bought a Lee RNL mold & that is what I feed the Marlin .
Can not remember if I tried any of those RNL loads in the Winny ? But I suspect they would feed fine ?
God bless
Wyr