Not trying to argue with beagleye but my choreographing experience is that 11.5g to 12g of 2400, sparked by a standard SP primer will drive a 158g bullet to the mid-1100 fps range in 4"-5" barrels. This is the performance I've seen reported most often for the 38/44, i.e. 1140fps to 1160fps. Good luck and good shooting.

Dave

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RSVN '69-'71
PCSD (Ret)