My partner and I, along with the help of old bear from this forum worked up a load today for the .44 magnum.
150 Grain Cutting Edge Raptor
26 Grains of 2400
Federal Large Primer
S&W 4 inch 629
3 shot average 1,749 FPS
Standard deviation 19 FPS
Tested on Dopplar Radar
At 25 yards it was at 1,650 FPS
old bear had a great time!!