Benzene, if this were a plinking or target load, I could help. Since you are loading an excellent defense bullet, maybe I can help by saying that there are better powders for defense loads than W-231. No doubt, there will be disagreement on this one, but it will be based mostly on the popularity of W-231 in .45 ACP loads. Loading for practical defense use, is a zebra with different stripes than target shooting!