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


 
Bullet: 90 gr Naturalis  (Lapua)
Diameter: 
 
Powder: N150 (VihtaVuori)
Starting Powder: 35.8 gr
Max Powder: 41.1 gr
 
Primer:  Small Rifle
 
Case: WIN
Trim Length: 1.660"
 
Cartridge Overall Length: 2.283"
 
Starting Velocity: 2,877
Starting Pressure:  
Max Velocity: 3,212
Max Pressure:  
 
Barrel: 27" with 1 in 10" twist.
 
Source: https://www.vihtavuori.com/reloading-data/rifle-reloading/?cartridge=11
 

Printed from Shooter's Reference on 12/30/2024:
https://www.shootersreference.com/reloadingdata/243-wssm-winchester-super-short-magnum/