 He also began what would become a long career as a freelance writer and columnist; he started as a reporter for the "Vernon Daily Record" before he moved on to the "Times Record News" in Wichita Falls.As an independent writer, Knox sold several articles to gun magazines including "Guns & Ammo" and "Guns" magazine between 1964 and 1966.He formally entered the firearms journalism trade in 1966, when he became the founding editor of "Gun Week", a weekly newspaper covering firearms issues of the day.