Load Data for 7 mm WSM (Winchester Short Magnum)


 
Bullet: 145 gr BTSP  (Speer)
Diameter: 0.284"
 
Powder: Supreme 780 (Winchester)
Starting Powder: 66.7 gr
Max Powder: 71.0 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.096"
 
Cartridge Overall Length: 2.860"
 
Starting Velocity: 2,958
Starting Pressure: 52,600
Max Velocity: 3,161
Max Pressure: 63,100
 
Barrel: 24" with 1:9.5" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/7-mm-wsm-winchester-short-magnum/