Hodgdon Extreme H4831SC Smokeless Powder - 8lb Keg - Ballistically, this Extreme Extruded powder is the exact copy of H4831. Physically, it has a shorter grain size, therefore the "short cut" designation (SC). The shorter, more compact kernels allow the powder to flow through powder measures more smoothly, helping to alleviate the constant cutting of granules. With the smoother flow characteristics comes more uniform charge weights while the individual grains orient more compactly, creating better loading density. See the Hodgdon Annual Manual for recommended uses of this powder.