AA #five is a good choice for progressive press newcomers as you employ extra powder so a double demand will (ordinarily) be noticeable. I like AA #five but N320 was much more accurate. Clays burns clear but some powder measures struggle with flake powders similar to this. WW 231 supplied https://45caliberbullets00715.blog-a-story.com/2748885/45-acp-projectiles-options