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, 30-378 Weatherby Magnum, etc. Retumbo adds 40-100 fps more velocity to these cartridges wh

IMR powders have exactly the same burn off rate as regular 7828 and works by using the identical knowledge. On the other hand, a result of the Tremendous brief kernels, metering is nearly pretty much as good being a spherical powder. This permits as many as 4% a lot more powder Place in the situation and in lots of masses yields much more velocity