Load Data for .280 Ackley Improved


 
Bullet: 150 gr SCIR  (Swift)
Diameter: 0.284"
 
Powder: IMR 4955 (Improved Military Rifle)
Starting Powder: 56.6 gr
Max Powder: 60.3 gr
 
Primer: WIN WLR
 
Case: NOS
Trim Length: 2.530"
 
Cartridge Overall Length: 3.330"
 
Starting Velocity: 2,694
Starting Pressure: 54,100
Max Velocity: 2,859
Max Pressure: 61,900
 
Compressed
Barrel: 24" with 1:9" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/280-ackley-improved/