So I questioned about dimensions between the two primers. I believed it's possible the Ginex were deeper than the Federal. The Federal ran quite constant .119" The Ginex were shorter running about .116" Even though not dependable (Measured just a 3 piece sample so possibly measure quite a bit much https://federalprimersfor9mm38360.blogsuperapp.com/32330355/the-best-side-of-federal-gold-medal-small-pistol-primers