All I ever shoot out of my Model 29 is 240 gr Cast SWCs and 22 grns of 2400.
Sucker is about 1380 FPS, don't know what more you want out of a 44 Mag.
I've had mine since the late 70s. Shot the crap out of it, and its still tight as a drum.
Don't see any reason to change.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071