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 bullseye gun powder adds 40-100 fps more velocity to

IMR 4350 powder is the number 1 choice for The brand new brief magnums, both equally Remington and Winchester variations. For magnums with light to medium bullet weights, IMR 4350 is the only option.Hodgdon IMR 4350 is really a smokeless, medium to slow burn up magnum, great for gentle to medium bullet weights and the new limited check here magnums