Bullet: 85 gr
MPG
(Barnes)
Diameter: 0.277"
Powder: IMR 4320 (Improved Military Rifle)
Starting Powder: 50.0 gr
Max Powder: 55.5 gr
Primer: REM 9½
Case: REM
Trim Length: 2.530"
Cartridge Overall Length: 3.100"
Starting Velocity: 3,333
Starting Pressure:
Max Velocity: 3,673
Max Pressure:
Barrel: 24" with 1:10" twist.
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/270WinchesterForWeb.pdf
Printed from Shooter's Reference on 12/21/2024: