Load Data for .257 ROBERTS ACKLEY IMPROVED


 
Bullet: 120 gr SBTSP  (Speer)
Diameter: 0.257"
 
Powder: 4350 (Accurate)
Starting Powder: 44.6 gr
Max Powder: 49.5 gr
 
Primer: FED 210
 
Case: REM
Trim Length: 2.223"
 
Cartridge Overall Length: 2.920"
 
Starting Velocity: 2,660
Starting Pressure: 55,600
Max Velocity: 3,023
Max Pressure: 61,700
 
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/257-roberts-ackley-improved/