Load Data for .270 WSM (Winchester Short Magnum)


 
Bullet: 135 gr HPBT  (Sierra)
Diameter: 0.277"
 
Powder: IMR 4955 (Improved Military Rifle)
Starting Powder: 61.9 gr
Max Powder: 65.9 gr
 
Primer: WIN WLRM
 
Case: WIN
Trim Length: 2.090"
 
Cartridge Overall Length: 2.840"
 
Starting Velocity: 2,956
Starting Pressure: 52,300
Max Velocity: 3,194
Max Pressure: 64,000
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/03/2024:
https://www.shootersreference.com/reloadingdata/270-wsm-winchester-short-magnum/