Bullet: 500 gr TSX  (Barnes)

Diameter: 0.474"

 

Powder: IMR 4831 (Improved Military Rifle)

Starting Powder: 82.0 gr

Max Powder: 93.0 gr

 

Primer: FED 215m

 

Case: Norma Precision AB

Trim Length: 3.240"

 

Cartridge Overall Length: 3.980"

 

Starting Velocity: 1,772

Starting Pressure:  

Max Velocity: 1,999

Max Pressure:  

 

*Recommend crimping into front cannelure groove. *Rifles with varying bore and groove diameters have been chambered for this cartridge before CIP standardized the specs. Barnes’ .470 NE bullets are designed for modern firearms in good conditions built to current specs. If in doubt, contact the firearm manufacturer or a competent gunsmith to ensure your rifle is safe to use with modern loads.
Barrel: 24" with 1:16" twist.

 

Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/470NitroExpress.pdf