Load Data for .243 Winchester


 
Bullet: 107 gr BTHP  (Sierra)
Diameter: 0.243"
 
Powder: IMR 4955 (Improved Military Rifle)
Starting Powder: 41.8 gr
Max Powder: 45.5 gr
 
Primer: WIN WLR
 
Case: WIN
Trim Length: 2.035"
 
Cartridge Overall Length: 2.850"
 
Starting Velocity: 2,714
Starting Pressure: 47,800
Max Velocity: 2,952
Max Pressure: 58,500
 
Compressed
Barrel: 24" with 1:10" twist.
 
Source: https://www.hodgdonreloading.com/
 

Printed from Shooter's Reference on 12/21/2024:
https://www.shootersreference.com/reloadingdata/243-winchester/