Bullet: 150 gr
(Barnes)
Diameter: 0.277"
Powder: Reloder 22 (Alliant Powder)
Starting Powder: 64.0 gr
Max Powder: 69.5 gr
Primer: FED 215m
Case: Norma Precision AB
Trim Length: 2.539"
Cartridge Overall Length: 3.280"
Starting Velocity: 2,902
Starting Pressure:
Max Velocity: 3,170
Max Pressure:
*A 1:9.5” or faster twist is recommended for the 150-grain TSX. *Some of the early German-made Weatherby rifles had 1:12” twist barrels, which will stabilize only 110-grain TSX bullets.
Barrel: 24" with 1:10" twist.
Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/270-Weatherby-Magnum.pdf
Printed from Shooter's Reference on 12/07/2024: