The American Hunter Hog and Predator Snare is an easy to use snare trap. The pressure activated trigger plate quickly launches the heavy duty braided steel cable around the leg of the activator to firmly hold them. The trap system comes with one polymer stake to secure the trap to the ground. Features. Pressure activated trigger plate Cost associated with corral trapping have been shown to vary greatly, ranging from $14.32 to $121 per pig. After the initial purchase of either pre-constructed trap or trap building materials, the main contributor to the high costs associated with this method is the time it takes to set up and monitor corral traps (68).