Bullet: 180 gr
Grand Slam SP
(Speer)
Diameter: 0.308"
Powder: 2000-MR (Alliant Powder)
Starting Powder: 66.9 gr
Max Powder: 74.0 gr
Primer: FED 215
Case: FED
Trim Length:
Cartridge Overall Length: 3.285"
Starting Velocity: 2,762
Starting Pressure:
Max Velocity: 3,033
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Winchester_Magnum_180.pdf
Printed from Shooter's Reference on 12/21/2024: