Bullet: 150 gr
Spitzer BTSP
(Speer)
Diameter: 0.308"
Powder: H380 (Hodgdon)
Starting Powder: 57.0 gr
Max Powder: 61.0 gr
Primer: CCI 250 Mag
Case: WIN
Trim Length:
Cartridge Overall Length: 3.500"
Starting Velocity: 2,620
Starting Pressure:
Max Velocity: 2,873
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/300_HH_Magnum_150.pdf
Printed from Shooter's Reference on 12/21/2024: