IMR 7828SSC Powder has the identical burn charge and utilizes the same data as everyday IMR 7828. Even so, due to the really short kernels, metering is sort of as good as with a spherical powder.IMR 7828 SSC is my go-to powder for .three hundred Earn Mag. The Tremendous-small grains make metering a breeze, And that i get dependable velocities with