Member 1Aspenhill is the local HD expert, but the above postwar/gold box examples are proper with Magna stocks. Prewar guns mostly had service stocks but i’ve seen a few with original prewar Magnas also.
By report the .38-44 shot a 158 gr lead bullet at 11-1200 fps. Buffalo Bore makes a similar load today and I’d guess it generates + P pressure levels. Now get searching!