It sounds reasonable, to be able to, But I thought I would ask. They would just be for practice reloads, Using 240gr. bullet. .44spl IMR-4227 requires a minimum of 15.7gr Maximum of 17.3gr .44mag IMR-4227 requires a minimum of 22.0gr Maximum of 23.3gr The only difference is the length of the barrel, .44spl tested with a 4" barrel and the .44mag was tested with a 7.5" barrel. All this information came from an old Sierra Bullets second edition reloading manual, Yes I should get a newer manual, But its what I have and I usually start at the minimum load suggested. Thought?