.257-300 RUM
 
.257-300 RUM
 
 

No commentary is written for this cartridge. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.

   
Bullet weight: Bullet name: Powder:  

 
Not yet verified user loads  
ID: Bullet weight: Bullet name: Powder:  
85 grs
Combined Tech
Hodgdon US869