The Speer manuals and some others show max loads well below the 2,430 fps factory loadings for 180 gr. Like 2,118 fps for 3031. Is this because of weaker early rifle actions?
Lyman runs 3031 up to 2,408 with a charge 3 grains (about 10%) over the Speer max load. In a Ruger No. 3, is there any reason not to go up to the Lyman loads?