The latest video from Primitive Technology (previously, awesome) is about making a bow and set of arrows from scratch.
The bow is 1.25 m (55 inches) long and shoots 60 cm (2 feet) long arrows. I don't know the draw weight — safe to say greater than 15 kg (35 pounds) perhaps? The stave was made from a tree that was cut with a stone axe and split in half with a stone chisel. I don't know it's name but it's common here and is the same wood I use for axe handles.
I love how these videos are shot and edited. The editing feels very contemporary — quick-fire pacing with very little superfluous material — but the lack of narration, dialogue, or explanatory text feels old school. Reminds me of the super-effective and efficient Buzzfeed Tasty vids.