Bullet: 400 gr
SPFN
(Speer)
Diameter: 0.458"
Powder: IMR 8208 XBR (Improved Military Rifle)
Starting Powder: 46.0 gr
Max Powder: 50.0 gr
Primer: CCI 200
Case: WIN
Trim Length: 2.095"
Cartridge Overall Length: 2.540"
Starting Velocity: 1,466
Starting Pressure:
Max Velocity: 1,598
Max Pressure:
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/45-70-government-trap-door-actions-with-400-gr-spfnpdf.pdf
Printed from Shooter's Reference on 12/21/2024: