The Firing Line Forums - View Single Post - Load data for Winchester 158 Grain JHP for 357

Ozzieman · December 20, 2007, 11:21 PM

For a 158 GR bullet using H110
This does require a Mag primer
MAX: 17.8 GR of H110 shows 1330 Muzzle Velocity
MIN: 15.8 GR of H110 shows 1263 Muzzle Velocity
Speer got this data shooting them out of a 6 inch Ruger security six
I would agree with jibjab, starting with 16.2 as a starting point and work up.
Different manufacture bullet types of the same weight only change there ballistic coefficient.
As long as they are the same weight, the same load will work fine and is safe.

December 20, 2007, 11:21 PM	#3
Ozzieman Senior Member Join Date: December 14, 2004 Location: Northern Indiana Posts: 6,117	Speer bood shows For a 158 GR bullet using H110 This does require a Mag primer MAX: 17.8 GR of H110 shows 1330 Muzzle Velocity MIN: 15.8 GR of H110 shows 1263 Muzzle Velocity Speer got this data shooting them out of a 6 inch Ruger security six I would agree with jibjab, starting with 16.2 as a starting point and work up. Different manufacture bullet types of the same weight only change there ballistic coefficient. As long as they are the same weight, the same load will work fine and is safe.