The thermal hunts were all stalk and shoot . A chair welded to the top sounds dangerous . On the big ranch we do use a jeep with a hole in the roof so the back seat guy can stand up an shoot with just his shoulders showing . You can stay in place that way . If you do drive up on a large herd an AR is useful [ even though they have no sporting use ] , with a couple of 30 round mags [ even though you only need one shot to hunt ] . It is not uncommon to drop 5 - 10 from a running herd .