Leave the bodies on the perimeter as a warning to others. Shouldn’t need so much ammo....
They start to stink after a few days, so only leaving them downwind works to your advantage. Now when they mass up and head toward your position, dropping several in the front, to create a choke point for taking your time to get the ones struggling to get over the bodies works well ... just sayin’ ...’course, then you have to drag the refuse to a down wind position.