Bullet: 180 gr
Spitzer BTSP
(Speer)
Diameter: 0.308"
Powder: IMR 4198 (Improved Military Rifle)
Starting Powder: 31.0 gr
Max Powder: 33.0 gr
Primer: CCI 250 Mag
Case: WIN
Trim Length:
Cartridge Overall Length: 3.340"
Starting Velocity: 1,879
Starting Pressure:
Max Velocity: 1,998
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Winchester_Magnum_180.pdf
Printed from Shooter's Reference on 11/21/2024: