Hodgdon Retumbo Smokeless Powder
Hodgdon Retumbo Smokeless Powderhodgdon retumbo powder is Available in 1 lb. and 8 lb. containers.This magnum, extruded powder was designed expressly for the really large overbored cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, bullseye powder 30-378 Weatherby Magnum, etc. Retumbo bullseye gun powder adds 40-100 fps