A 32-year-old man from Walton County, Georgia lost a leg after a target practice session went horribly wrong.

A 32-year-old man from Walton County, Georgia lost a leg after a target practice session went horribly wrong.
David Presley put three pounds of Tannerite--a commercial explosive--into an old lawnmower. 
According to WXIA, Tannerite's manufacturers suggest using only half a pound at a time--at most.
Presley shot at the dangerously modified device from a distance of 25 yards as two teenagers used their cellphones to film the escapade,