I don't know of any factory load that is this powerful
in the 40, this load came from Hodgdon data, one of
my favorite loads, note how low the pressure is.
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http://www.hodgdonreloading.com/data/pistol
Case: Hornady
Twist: 1:16"
Primer: Winchester SP, Small Pistol
Barrel Length: 4"
Trim Length: .845"
BULLET WEIGHT180 GR. HDY XTP
Hodgdon
Longshot
.400"
1.125"
6.5 GR
1,009 FPS
25,000 PSI
8.0 GR
1,159 FPS
32,300 PSI
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40 s&w,, RP brass
CCI 500
8 gr Longshot
180 XTP HP
1.135 TO 1.140 OAL
3/8 Lee crimp
50 degrees
3900 ft elevation
G27 OEM
1114, 1094, 1098, 1097, 1106,,,,, AVE 1102 FPS
G27 4.06'' th LW barrel
1206, 1185, 1191,,,,,,,,,,,,,,,,,,,,,,,,AVE 1194 FPS
4.06'' LW G23 barrel in G27
1178, 1182 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,AVE 1180 FPS
G30 with a G29 4.6'' LW Ext
10mm barrel, lots of free bore
or would have been faster.
1198, 1189, 1209, 1202, 1214,,,,AVE 1202 FPS
G20 with 6'' LW 40 conversion barrel
1249, 1247, 1246, 1224, 1259,,,, AVE 1245 FPS
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Many 10mm loads are not that powerful.
With that load and a good cast WFN boolit, it is a
OK woods round too.