Load Data for .223 WSSM (Winchester Super Short Magnum)

 
Bullet: 70 gr TSX  (Barnes)
Diameter: 0.224"
 
Powder: Reloder 19 (Alliant Powder)
Starting Powder: 44.0 gr
Max Powder: 48.0 gr
 
Primer: FED 210m
 
Case: WIN
Trim Length: 1.660"
 
Cartridge Overall Length: 2.180"
 
Starting Velocity: 3,227
Starting Pressure:  
Max Velocity: 3,500
Max Pressure:  
 
Compressed
Recommended Twist 1:8” or Faster
Barrel: 24" with 1:10" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/223-WSSM.pdf
 
Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/223-wssm-winchester-super-short-magnum/