Early smokeless powders were loaded by volume, like black powder. The accidents started happening when high density propellants came along that required loading by weight not volume. Reilly is giving the shooter the equivalent black powder loads to smokeless. Notice the BP loads are quoted in drams while the smokeless loads are in grains. There’s a lot here in the archives that discusses this at length, ad nauseum etc.

Last edited by eeb; 12/02/22 10:40 PM.