Men tend to make long bows, about six feet in length, which are exceptionally powerful and heavy to pull. By testing several Hadza bows in the field using a spring balance, Woodburn determined that more than 100 pounds of force were required to draw an average bow fully. He concluded that Hadza hunters prefer powerful bows to accurate ones, which matched his observation that the Hadza hunt from very close range, 25 to 50 yards to shoot impala, zebra, eland or giraffe. Some Hadza also eat predators, including lion, leopard, and other wild cats, or perhaps scavengers like jackal, hyena and vulture, but they draw the line at reptiles like monitors, snakes and lizards. They use poisoned arrow tips to hunt large animals. Once a beast has been wounded, the hunter waits a few hours for the poison to act and then tracks the wounded animal until it dies.
by
The Hadza Tribe of Tanzania
Millett, Katherine
2001
I like this guys idea of close range
"very close range, 25 to 50 yards" I'd say they used pretty accurate bows if he actually witnessed the hunts?