Kinda what I was expecting, too fast for the M1. It works OK in the AR, but there are better powders. I have yet to try reloades in the X39, but have finally got the mould I wanted to shoot in it, so will try it soon. I still have a batch of milsurp stuff back when it was 7 cents a pop, loaded. Have decided to start reloading the x39, before I shoot all the steel stuff up. Might need it someday.