My intention is to switch over to a .45 long colt because I can reload for a revolver or derringer which is does not work for a semi.
I have had a semi jam on me and one of the jams required a bit of work to fix. So it’s going to be a wheel gun or derringer in that caliber. They also shoot wax bullets well which generally cannot be done with a semi. Wax bullets run about 4.5 cents a piece and are frequently used in cowboy shooting.
There are some interesting loadings for .45LC such as 250 gr, 700 fps and another at 300 grain, 565 fps, both devastating rounds. So it should be interesting.
I have a 45LC and never thought of subsonic loads. Are you using loading tables? Which ones?