Bullet: 145 gr
Grand Slam SP
(Speer)
Diameter: 0.284"
Powder: IMR 4831 (Improved Military Rifle)
Starting Powder: 53.0 gr
Max Powder: 57.0 gr
Primer: CCI 200
Case: WIN
Trim Length:
Cartridge Overall Length: 2.800"
Starting Velocity: 2,754
Starting Pressure:
Max Velocity: 2,948
Max Pressure:
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/rifle/284_Winchester_145.pdf
Printed from Shooter's Reference on 11/23/2024: