A Wolfe Publishing Company rep told me Ross was "pursuing other interests". I had just reviewed my subscriptions to Rifle & Handloader mags partly because of Seyfried's writings.
He certainly can write. He certainly is uniquely knowledgable. He certainly is full of himself. But...that seems to be in the personality of champions. I have known several world champion athletes who are pretty much the same way.
Somebody once said, "It isn't cockiness or brag if you can do what you say you're gonna do."
As for Seyfried's apparent financial success, there's another old saying, "Don't try to count what's in a fellow's pocket. You don't know who put it there."
