For over 33 years COR(R)BON's dedicated and skilled team has been developing innovative hunting ammunition for serious hunters traveling around the world to harvest large"" tough"" and dangerous game. Swift A-Frame bullets are unique in the fact that they have a bonded dual core separated by a copper partition. Intended for heavy"" thick skinned game. This bullet expands to twice its bullet diameter and typically has 90 to 100% weight retention.