Each can use what the want. For Africa it often needs to conform to some minimum caliber requirement. Although the 30-30 makes the cut on many minimum requirements there are many better choices. By all means take it to Africa but use it within it's limitations. A low power scope is a good idea on a leopard over hounds hunt. Hunting leopard cannot be compared to hunting a black bear over hounds, not the same thing. 30-30 is a poor choice for leopard no matter how it is being hunted.