In the end
what we use in hunting will be regulated by how we harvest. If an item were too efficient at harvesting, reductions of hunting time would occur. Many states have seen a reduction in hunters and that affects the efficiency of the hunting tool. The tool doesn't rule, if the game hunted starts falling in numbers.
A rifle is more efficient than a compound bow; a crossbow more efficient than a compound or traditional bow; a rifle more efficient than a flintlock musket. The art is to have so much efficiency and not too much to endanger the hunted animal population.