I'd have to go with one of the 6mm short/medium actions like 243, 243AI, 6mm, or 6mmAI. Depending on your twist you can get bullets from 55gr. to 115gr. in all different styles. I can't think of many animals on this continent I wouldn't try and take with one using the properly matched load. Recoil is mild, components popular, and like Brad said, those high BC 6mm bullets are hard to beat at a distance.