Hodgdon Retumbo Smokeless Powder 1 Lb by HODGDON and IMR & WINCHESTERThis magnum powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum and 300 Remington Ultra Magnum and 30-378 Weatherby Magnum and etc. RETUMBO adds 40-100 fps more velocity to these cartridges when compared to other normal magnum powders. In addition and it is an Extreme Powder and making it perfect for big game hunting under all types of conditions. Grain shape is extruded (stick)
