Bullet: 55 gr
Spitzer SP
(Speer)
Diameter: 0.224"
Powder: IMR 4320 (Improved Military Rifle)
Starting Powder: 35.0 gr
Max Powder: 39.0 gr
Primer: CCI 200
Case: WIN
Trim Length: 2.195"
Cartridge Overall Length: 2.650"
Starting Velocity: 3,225
Starting Pressure:
Max Velocity: 3,536
Max Pressure:
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/220-swift-with-55-gr-spitzer-sppdf.pdf
Printed from Shooter's Reference on 12/21/2024: