Load Data for .243 WSSM (Winchester Super Short Magnum)


 
Bullet: 70 gr BT  (NOS)
Diameter: 0.243"
 
Powder: IMR 4350 (Improved Military Rifle)
Starting Powder: 45.0 gr
Max Powder: 48.0 gr
 
Primer: WIN WLR
 
Case: WIN
Trim Length: 1.660"
 
Cartridge Overall Length: 2.280"
 
Starting Velocity: 3,374
Starting Pressure: 48,500
Max Velocity: 3,566
Max Pressure: 56,400
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/243-wssm-winchester-super-short-magnum/