4" M64-5
.38 special
125gr fmj over 6.1gr BE-86
1004 fps
280 ft lbs
158gr swc-wn over 5.7gr BE-86
1004 fps (yes, the same as the 125gr loads)
354 ft lbs
20" M92
.357
125gr fmj over 6.1gr BE-86
1771 fps
870 ft lbs
158gr swc-wn over 13.5gr 2400
1719 fps
1036 ft lbs