Here is what Chuck does with it:
Pit Wall Ball
Stand six feet away from wooden beam. Bend down, pick up a 125-pound medicine ball and raise it to chest height. Throw ball at beam by pushing arms straight out in front of you. Must bounce back at least three feet, or else repeat rep. Five reps is one set. One-minute rest. Five sets.
Hackleman: "This is for punching power. Just picking up the 125 pounds is killer, but I need him to throw it with power as well. This primarily builds up his shoulder muscles."