43 Spanish load data
After an absence of over 30 years I'm about to begin reloading again. Have a circa 1871 Remington Rolling Block in 43Spanish, which is very similiar to 11mm/43 Mauser or 43 Egyptian. Its in very good condition. Don't want to use black powder. Have a can of IMR3031 powder and 370 grain cast bullets. Anyone have a suggestion for grains of powder to safely use.