Bullet: 140 gr
SP
(Swift)
Diameter: 0.277"
Powder: IMR 4955 (Improved Military Rifle)
Starting Powder: 54.0 gr
Max Powder: 59.0 gr
Primer: WIN WLR
Case: WIN
Trim Length: 2.530"
Cartridge Overall Length: 3.280"
Starting Velocity: 2,713
Starting Pressure: 51,700
Max Velocity: 2,955
Max Pressure: 62,900
Barrel: 24" with 1:10" twist.
Source: https://www.hodgdonreloading.com/
Printed from Shooter's Reference on 01/21/2025: