Thanks, Mike and Miller. I used to find once-fired .444 brass on the firing lines at my club in Eastern NYS right before deer season and used them to make .410 "Everlasting" shells for small game hunting. I suspect .44 Magnum cases could be rigged to fit in the Stevens .44XL Shot as well.

BUT (my big butt) I notice that Frank de Haas's book mentions that many of the Stevens 101s with the "Marksman" action like mine were rechambered to .410 shotshell in his time and shot loose quickly. So this action needs MILD loads.

I fired a .44-40 "Cowboy" load in mine some years ago but haven't tried that again since I read Frank's piece. Not a great test-bed for ballistic experiments, it seems to me. (But kinda cute!).