Bullet: 140 gr
COWBOY
(HDY)
Diameter: 0.358"
Powder: SR 4756 (Improved Military Rifle)
Starting Powder: 5.1 gr
Max Powder: 5.7 gr
Primer: WIN WSP
Case: WIN
Trim Length: 1.145"
Cartridge Overall Length: 1.450"
Starting Velocity: 946
Starting Pressure: 13,400
Max Velocity: 1,018
Max Pressure: 15,900
Barrel: 7.7" with 1:18.75" twist.
Source: https://www.hodgdonreloading.com/
Printed from Shooter's Reference on 05/05/2024: