A fine spherical propellant that has wide application in pistol & shotshell In pistol, 9mm, 38 super, 40 S&W, & 10mm are some of the cartridges where HS-6 provides top performance In shotshell HS-6 yields excellent heavy field loadings in 10ga, 12ga, 20ga & even the efficient & effective 28ga Hs-6 is truly an outstanding spherical propellant Identical to Winchesters discontinued 540 Mfg: Hodgdon Powder Co., Inc.