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


 
Bullet: 100 gr BTSP  (Speer)
Diameter: 0.243"
 
Powder: IMR 4451 (Improved Military Rifle)
Starting Powder: 38.4 gr
Max Powder: 41.8 gr
 
Primer: WIN WLR
 
Case: WIN
Trim Length: 1.660"
 
Cartridge Overall Length: 2.300"
 
Starting Velocity: 2,885
Starting Pressure: 54,600
Max Velocity: 3,075
Max Pressure: 63,700
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 11/21/2024:
https://www.shootersreference.com/reloadingdata/243-wssm-winchester-super-short-magnum/