Quote:
Originally Posted by noylj
Bullet Weight Powder Weight Velocity Note P.F. COL
S&SL-SWC 170 HS6 6.0 839 Start 143 1.130
Lead 170 HS6 6.3 945 Start 161 1.100
SWC 170 HS6 6.3 915 156 1.170
SWC 170 HS6 6.5 985 Start 167 1.135
SWC 170 HS6 7.0 1050 Max 179 1.135
S&SL-SWC 170 HS6 7.0 1036 176 1.130
Lead 170 HS6 7.2 1060 Max 180 1.100
SWC 170 HS6 7.2 1030 175 1.170
I would start at 6.0-6.3gn and work up.
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thanks for the data this was what I used from Hodgon
Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure
165 GR. BERB FP Hodgdon HS-6 .400" 1.125" 7.4 1027 26,900 PSI 8.1 1108 31,300 PSI
165 GR. SIE JHP Hodgdon HS-6 .400" 1.125" 7.3 1013 28,700 PSI 8.0 1098 32,700 PSI
your data looks good so I will drop it to 6.3 thats 1.3 grains less then what I used for the starting point.
thanks again