In this case core/jacket separation and fragmentation.
Did it kill the animal?
Really?
Just because a bullet kills an animal does NOT mean it lived up to design performance.
Some things just won’t go away.
Jerry
So true, however if the result in question is not a claim made by the manufacturer then its not a failure. For example, I don’t see any claims made by Sierra that the GameKing is designed to retain its jacket, therefore if it looses its jacket, it’s not a failure.