Load Data for .25 WSSM (Winchester Super Short Magnum)

 
Bullet: 80 gr Tipped TSX  (Barnes)
Diameter: 0.257"
 
Powder: IMR 4007 SSC (Improved Military Rifle)
Starting Powder: 45.5 gr
Max Powder: 50.5 gr
 
Primer: FED 215m
 
Case: WIN
Trim Length: 1.660"
 
Cartridge Overall Length: 2.270"
 
Starting Velocity: 3,263
Starting Pressure:  
Max Velocity: 3,667
Max Pressure:  
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/25WSSM.pdf
 
Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/25-wssm-winchester-super-short-magnum/