I guess I ought to have been extra distinct, but I do think my OP nonetheless indicates it. I am not trying to get a 'substitute' for W231, but a 'alternative'. For a few years, I've used W231 for 'follow' loads in my choose handguns employed for house/self defense, but https://cfe-pistol-load-data-9mm79573.blogstival.com/48506211/considerations-to-know-about-10mm-cfe-pistol-load-data