This is the data from my last chrono run. I'm working up to a 165 power factor.
Berry's Hollow Backed RN 185 grain, Remington cases, CCI 300 Large Pistol Primers, 5.6 grains Hodgdon Tightgroup, 1.24" OAL, 5" bbl
865.9
893.5
873
910.5
866.1
869.6
896.2
883.3
862.3
893.8
Average = 881.42
Standard Deviation = 16.39300664
Standard Deviation "P" = 15.5517716
Power Factor = 163,063