I have used it for .357,.44, and 10ga. I seen the warning on using this for the light 125gr. bullets, and I'll be honest. I really don't remember ever using it for the light bullets. But, I went back thru 9 reloading manuals, the first one I got was Lyman,45 edition, printed in 1970, was the only one that didn't have any load data for that combination. They must have changed the powder composition in the last batch. I'll heed their warning, as for that bullet I would want a quicker burning powder anyway. gypsyman