I have been enjoying shooting 38-44 loads (once factory years ago and now reloads) since the late sixties when Remington and Winchester still made 38-44 loadings (1,090 FPS from 6 inch test barrels).
I found in actual testing that later factory loadings were approximately 1,025 FPS out of 6 inch barrels.
I was able to duplicate later (1970 Remington 38 Special Hi-Speed vintage) 38-44 velocities using 6.0 grs Power Pistol and 158 gr cast SWC (Lyman 2 alloy) - approx 1,025 FPS.
Meeting original 38-44 loading velocities (true 1,100 FPS) is a different matter. I’ve used Lyman 44 data using 158 gr swc and 2400 to do that...which by the way I’m not advocating and do not recommend although I use this load only in my 357 Ruger B/H (and own no 38 Spl only revolvers).
What are your favorite 38-44 loadings for use in your S&W Heavy Duty’s/Outdoorsman’s or 357 Magnum revolvers?