Bullet: 270 gr
GDSP
(Speer)
Diameter: 0.429"
Powder: IMR 4227 (Improved Military Rifle)
Starting Powder: 20.5 gr
Max Powder: 22.5 gr
Primer: REM 2½
Case: WIN
Trim Length: 1.280"
Cartridge Overall Length: 1.600"
Starting Velocity: 1,275
Starting Pressure: 28,400
Max Velocity: 1,425
Max Pressure: 37,400 CUP
Barrel: 8.275" with 1:20" twist.
Source: https://www.hodgdonreloading.com/
Printed from Shooter's Reference on 05/03/2024: