Had to rebuild the "fixture" prior to the 3rd shot. The latest revision resulted in a fixture with much more flexibility. New features: Plastic front end replaced with rubber belting to simulate a thick skin (Hereford bull Rubber belting front would take many hits without leaking media. No weight added to the top to maintain density. Front made removable for shooting through skin only or replaced with plastic for shooting through bone. The idea was to introduce less rigidity allowing impact to be absorbed with out further damaging the fixture. That piece of irrigation pipe was hard to come by. The Bull Hide Front Front End Side View Showing Bungies Next post - The results.