I should have mentioned this earlier: The bullet in the photo is a 340gr Solid Shank Rhino recovered from a giraffe shot with a .375 H&H from about 60 yards.
Despite its 2x calibre expansion it penetrated the 3/4" thick skin, the scapula, passed through a rib, severed the pulmonary artery above the heart, penetrated an opposite rib, penetrated the opposite scapula and stopped against the skin. It retained 99% weight.
You just gotta love those homogeneous copper bullets. A solid with an expanding nose.