The bullet on the left is a .416 caliber 400 grain Barnes TSX recovered from a Cape Buffalo. Cartridge .416 Remington Magnum. Retained weight 398.9 grains.
The bullet in the middle is a .375 caliber 300 grain Swift A-Frame recovered from a Kudu. Cartridge .375 H & H Magnum. Retained weight 258.0 grains. FYI this bullet hit facing on and penetrated over 6 feet-was found in the rear end against the skin.
The bullet on the right is a .366 caliber 250 grain Barnes TSX recovered from a Gemsbok. Cartridge 9.3 x 62 Mauser. Retained weight 250.0 grains.