Do you re-load ammo or know anyone who does? You can easily make .44-40 cases from .303 British cases.
I have heard this several times, but have never found instructions, can anyone provide a tutorial?
Or you could try calling Clay at Prophet River to see if he has any 44-40 cartridges. I bought a case from him a while back. But Clay is in Saskatchewan.
Have you tried calling Epps. They carry 30-40 Krag cartridges, so I would bet they also have 44-40 cartridges.