3N38 POWDER NO FURTHER A MYSTERY

All are much slower burning than Green Dot. Next, the MEC bushing chart will only get you close up. You should Test the thrown pounds which has a scale.You should not know about 410, but, I ran into exactly the same factor with Alliant e3. I began shooting it in .40 S&W and also sent test loads to Alliant for tension testing with excellent success.