Usually Birch.
Birch
Balsa wood is the lightest.
The lightest type of wooden bat i have used has been Ash, it is very durable, light and has a good pop to it.
balsa
I'm pretty sure it's balsa wood.
The lightest wood is typically considered to be balsa (Ochroma pyramidale), which is known for its exceptional lightweight properties and is often used in model building and crafts. The second lightest wood is usually called paulownia (Paulownia tomentosa), which is also lightweight but slightly denser than balsa. Both woods are valued for their strength-to-weight ratios, making them popular choices in various applications.
Western cedar.
Balsa is the lightest Hardwood But it is soft
Yes, the olive tree produces a hard and strong wood. Olive wood is used for a wide variety of applications. Olive wood is used to make smoking pipes, musical instruments, and even the stock of guns.
Common knowledge would say balsa, but there may be a lighter one out there. Cork is pretty darn light, but the light part is technically its bark.
Msterials used were similar to material used today- metal and wood. The earliest firearms were made of brass for the barrels, and wood for the stocks. Later guns were made with barrels of iron, and later steel.
Wood, metal, polymers.