Availablity, Cost, and Density.
Pencil leads are always made out of graphite. The term lead comes from history, when they were made from lead, but they are now made from graphite.
Lead brick
it has two parts the lead part which is lead and made up of the lead element, and the wood part which is a not-so-hard-kind of wood the#2 pencils are made up of that.
No. Also, "pencil lead" is not lead; it is almost always graphite (made of carbon)
Hollow point bullets literally have a hollow point, and ball ammo does not.
Most bullets are made from lead. Some will have copper jackets around them, but the bullet itself will be lead.
lead.
Usually they aren't. Lead, or lead in a copper shell (a "jacket") is the most common choice for bullets. Bullets CAN be made of mild steel, usually also copper jacketed, and it's usually done because of concerns about the lead from the bullets causing pollution. Mild steel is one of the less expensive replacement options for lead in bullets.
Bullets can be made from many materials including wood, steel brass, copper, lead, tungsten, bronze, plastic, etc.
Lead, with a copper jacketing.
lead, copper, steel
Yes, some still do. The actual bullet is made of lead.
Most are. A very few have no lead, but most bullets ARE lead, or lead combined with other metals. A few have been made of plastic, wood, wax, copper, steel and even powdered iron.
bbs are made out of steel and pellets are made out of lead
About 99%. Lead is an inexpensive metal that is soft and dense- 3 criteria for bullets. Most will be made of lead- if not entirely, they will have a lead core covered by another metal, such as copper.
Lead is too soft to use in a gun. However some bullets are made with Lead.
Most are made from one or more metals, including lead, lead covered in a brass alloy, copper, etc. A few bullets are made of a hardened steel with a brass covering, and a few from plastic.