TYPE Flattened Spherical Double Base Powder BURNING SPEED Medium / Slow PERFORMANCE BENCHMARK Winchester 540 / Hodgdon HS6 APPLICATION Ideal for powerful cartridges with high level pressures. BEST USED FOR ( also for practical shooting cartridges medium powerful) 7,65 Parabellum; 9x21; 38SA; 357 Mag.; 357 SIG; 38 SA; 40 S&W; 44 Magnum.