Delta McKenzie African Warthog Replacement Core - Get the most out of your African Warthog Archery Target with the African Warthog Replacement Core. The replacement core fits snuggly into the vital area and gives your target and extended life. Universal scoring rings and vital rings come standard on the replacement core so you can continue to focus on the areas that matter most. Made of durable foam, the African Warthog Core can withstand shots from field points and broadheads.