Hodgdon Powder offers one of the largest selections of quality smokeless propellants for rifle reloading. These powders are very popular with high power and long-range shooters, varmint hunters, and benchrest shooters.
Hodgdon's exclusive line of extruded rifle powders was developed to give shooters consistent performance load after load, in ever the most extreme heat and cold.
H322 provides benchrest accuracy in small and medium capacity cartridges such as 223 Rem, 6mm PPC, and 7mm TCU. A fine extruded powder that meters well through your powder measure.
Big Book Catalog, Issue:68, Page:544
Sinclair, Issue:5B, Page:095