Bullet: 140 gr
TGK
(Sierra)
Diameter: 0.277"
Powder: IMR 7977 (Improved Military Rifle)
Starting Powder: 72.0 gr
Max Powder: 77.8 gr
Primer: WIN WLRM
Case: NOS
Trim Length: 2.575"
Cartridge Overall Length: 3.335"
Starting Velocity: 3,044
Starting Pressure: 51,400
Max Velocity: 3,276
Max Pressure: 63,100
Barrel: 24" with 1:10" twist.
Source: https://www.hodgdonreloading.com/
Printed from Shooter's Reference on 02/01/2025: