IMR 7828SSC Powder has the exact same melt away rate and makes use of the same data as ordinary IMR 7828. Nevertheless, because of the incredibly brief kernels, metering is nearly pretty much as good as with a spherical powder.IMR 7828 SSC is my go-to powder for .300 Win Mag. The super-brief grains make metering a breeze, and I get dependable velo