I expand my rifle cast boolit cases with RCBS expander dies. They have been very satisfactory. RCBS expanders go from the equivalent of Lyman's long step into a funnel-shaped expander. So that I can make a comparison between the RCBS expanders and Lyman two-step M dies could somebody post the diameters of both steps of Lyman M dies in the following caibers: 7mm, .30, .32/8mm, and .35? TIA