Load Data for .270 Winchester

 
Bullet: 150 gr TSX  (Barnes)
Diameter: 0.277"
 
Powder: Supreme 780 (Winchester)
Starting Powder: 51.8 gr
Max Powder: 57.5 gr
 
Primer: REM 9½
 
Case: REM
Trim Length: 2.530"
 
Cartridge Overall Length: 3.210"
 
Starting Velocity: 2,600
Starting Pressure:  
Max Velocity: 2,900
Max Pressure:  
 
Compressed
RECOMMENDED TWIST: 1:9.5” OR FASTER
Barrel: 24" with 1:10" twist.
 
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/270WinchesterForWeb.pdf
 
Printed from Shooter's Reference on 05/19/2024:
https://www.shootersreference.com/reloadingdata/270-winchester/