Are any of these ball powder? Vihtavuori N570,20N29,24N41,Lovex D1001 Or Hodgon 50 BMG. I am not to up on what powders are ball or extruded. I am just doing a bit of research on a round I am going to reload. Its for a 7mm Rem mag. I know there are alot of good powders out there for it but I am just curious. Also who or where do you find ADI powder? I saw it on quickload. It said ADI AR 2218. Any help is appreciated. Thank you in advance.