I'll admit my ignorance in advance.. I've been reading posts here and elsewhere endlessly but am not sure how to determine which powders are faster burning. I just got my dies and am getting close to the handloading stage, I have many various powders and am assuming that with a short barrel faster burning powder would be best. I haven't bought a chronograph yet, that will be my next purchase. I have studied Doc's post reloading 101 and found tremendous amount of info in that one post.