Thought I'd use this as a demonstration of what the bullet is up against on a 250 lb boar. The shoulder area is covered with this subcutaneous, nearly inflexible sheath. The heavy bullets utilized in big bore rifles have no difficulty penetrating this protective covering on both sides of the boar! The sheathing is also responsible for a lack of blood trail unless there is a substantial hole provided by the bullet. I offer this as information for new hunters contemplating using light speedy, frangible bullets. Please remember there is approximately two or more inches of muscle and ribs to defeat before the bullet gets to the heart/lungs on a broadside shot.