I killed a 380lb boar one time that was about as round as he was long. After snapping a quick kill shot, I rolled him with my boot and watched him tumble and slide down the mountain till he lodged against a tree. I walked down and dragged him off the tree and tumbled him again. I did this over and over until I got him to a place where I could load him in a truck. I only had to drag him about 50 feet. That's about as easy as a big one gets.