I really like WSF for 9mm.
My current match load is 4.4-4.5gr WSF with a 124 MPR
5" 9mm 1911, mixed range brass, S+B SP, charges as thrown after setting measure
String: 2
Date: 10/29/2017
Time: 10:45:05 AM
Grains: 124
Hi Vel: 1066
Low Vel: 1008
Ave Vel: 1038
Ext Spread: 58
Std Dev: 18
RMR 124 MPR JHP 4.4-4.5 WSF 1.08 5inch 1911 (about 4.45gr)
Velocity Power Factor Ft/Lbs
1016 125.984 284.191
1032 127.968 293.213
1027 127.348 290.378
1044 129.456 300.071
1042 129.208 298.923
1053 130.572 305.267
1056 130.944 307.009
1008 124.992 279.733 hmm maybe a little light on the charge on this one??
1044 129.456 300.071
1066 132.184 312.851
5.0gr shorter OAL
String: 8
Date: 9/17/2017
Time: 11:33:50 AM
Grains: 124
Hi Vel: 1157
Low Vel: 1121
Ave Vel: 1139
Ext Spread: 36
Std Dev: 15
RMR MPR JHP 5.0 WSF 1.065
Velocity Power Factor Ft/Lbs
1153 142.972 366.001
1132 140.368 352.79
1157 143.468 368.545
1135 140.74 354.662
1121 139.004 345.967
4.9 with the MW
String: 2
Date: 10/29/2017
Time: 9:08:18 AM
Grains: 124
Hi Vel: 1137
Low Vel: 1113
Ave Vel: 1125
Ext Spread: 24
Std Dev: 9
RMR 124 FN-FMJ 4.9 WSF 1.08 5inch 1911
Velocity Power Factor Ft/Lbs
1137 140.988 355.913
1117 138.508 343.502
1113 138.012 341.047
1130 140.12 351.544
1128 139.872 350.301
4.7gr WSF with the MW
String: 2
Date: 10/29/2017
Time: 10:46:10 AM
Grains: 124
Hi Vel: 1066
Low Vel: 1027
Ave Vel: 1047
Ext Spread: 39
Std Dev: 12.7
RMR 124 FN-FMJ 4.7 WSF 1.08
Velocity Power Factor Ft/Lbs
1032 127.968 293.213
1027 127.348 290.378
1044 129.456 300.071
1042 129.208 298.923
1053 130.572 305.267
1056 130.944 307.009
1044 129.456 300.071
1066 132.184 312.851
Hope this helps