My everyday load for the Flattop .44 Spl is a 215 gr LSWC at 1050 (est) FPS. Nice load to shoot and very accurate. Hunting load is a 240 gr LSWC at 1000 (est) FPS.
Would not hesitate to run a 240 up to 1200 FPS if the need arose.
.44 Special: For those who get it, no explanation is necessary. For those who don't, no explanation is possible.