Bullet: 300 gr Barnes Originals  (Barnes)

Diameter: 0.458"

 

Powder: 2230 (Accurate)

Starting Powder: 58.0 gr

Max Powder: 65.0 gr

 

Primer: FED 210m

 

Case: Starline Brass

Trim Length: 2.095"

 

Cartridge Overall Length: 2.515"

 

Starting Velocity: 2,268

Starting Pressure:  

Max Velocity: 2,446

Max Pressure:  

 

*Recommend crimping case mouth into front cannelure groove. *This data is intended for use only in modern, Marlin 1895 rifles in good condition. Do not use this data in Springfield Trapdoor rifles. *The SAAMI MAP value for this cartridge is 28,000 psi. We shot the 1895 Marlin data to 42,000 psi. *Do not use Barnes’ spitzer shaped bullets in tubular magazines.
Barrel: 24" with 1:20" twist.

 

Source: https://www.barnesbullets.com/wp-content/uploads/2021/05/45-70Marlin1895Web.pdf