Everything about accurate 2520 for 308
All tend to be slower burning than Green Dot. Upcoming, the MEC bushing chart will only get you close up. You will need to Test the thrown pounds using a scale.Will not understand about 410, but, I ran into the same issue with Alliant e3. I started shooting it in .forty S&W and perhaps despatched take a look at loads to Alliant for pressure testing