Load Data for .257 ROBERTS ACKLEY IMPROVED


 
Bullet: 75 gr HP  (Sierra)
Diameter: 0.257"
 
Powder: 4350 (Accurate)
Starting Powder: 49.5 gr
Max Powder: 55.0 gr
 
Primer: FED 210
 
Case: REM
Trim Length: 2.223"
 
Cartridge Overall Length: 2.790"
 
Starting Velocity: 3,213
Starting Pressure: 53,000
Max Velocity: 3,651
Max Pressure: 58,900
 
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/