Bullet: 40 gr
Spire SP
(Speer)
Diameter: 0.224"
Powder: 760 (Winchester)
Starting Powder: 39.0 gr
Max Powder: 43.0 gr
Primer: CCI 250 Mag
Case: WIN
Trim Length: 2.195"
Cartridge Overall Length: 2.625"
Starting Velocity: 3,433
Starting Pressure:
Max Velocity: 3,821
Max Pressure:
Source: https://reloadingdata.speer.com/Downloads/speer/ReloadingPdfs/220-swift-with-40-gr-spire-sppdf.pdf
Printed from Shooter's Reference on 12/21/2024: