Turkey hunting with dogs goes way back...sometime before 1900. Methods varied in different areas.
One method years ago was to flush the turkeys into trees in the winter and shot them with small caliber rifles.
My research shows this practice was frowned on by allot of hunters...combine that with declining turkey populations and it's easy to see why turkey dog hunting was outlawed in most states.
Rifles are illegal most places...Turkeys are back...dogs are back.