Bullet: 300 gr
TMJ FN
(Speer)
Diameter: 0.500"
Powder: IMR 4227 (Improved Military Rifle)
Starting Powder: 31.5 gr
Max Powder: 32.5 gr
Primer: CCI 350 Mag
Case: Speer
Trim Length:
Cartridge Overall Length: 1.580"
Starting Velocity: 1,284
Starting Pressure:
Max Velocity: 1,334
Max Pressure:
REVOLVER VELOCITIES Freedom Arms M555 7.5"
Source: https://reloadingdata.speer.com/downloads/speer/reloading-pdfs/handgun/50_Action_Express_300_Revolver.pdf
Printed from Shooter's Reference on 05/01/2024: