Bullet: 150 gr
Spitzer BTSP
(Speer)
Diameter: 0.308"
Powder: 2000-MR (Alliant Powder)
Starting Powder: 70.4 gr
Max Powder: 78.1 gr
Primer: FED 215
Case: FED
Trim Length:
Cartridge Overall Length: 3.330"
Starting Velocity: 3,033
Starting Pressure:
Max Velocity: 3,328
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_Winchester_Magnum_150.pdf
Printed from Shooter's Reference on 12/30/2024: