Firearm Safety

7. , A metal projectile for firing from a rifle
8. , The device for storing cartridges in a repeating firearm for loading into the chamber
12. , a cover or shell that protects or encloses something
13. ,The part of a cannon behind the bore
14. , The device on top of the barrel that allows gun to be aimed
16. , A shoulder fired long gun with a smooth bore design to fire shot shells containing numerous pellets
17. , A tube that is inserted into a gun and contains a bullet
18. , A firearm having rifling in the bore and designed to be fired from the shoulder
20. , a mechanism on an action to prevent firing of the gun

1. , The diameter of a gun barrel or bullet
2. , The open end of the barrel of a firearm
3. , The moving parts that load/fire/eject the empty shells
4. , The part if a firearm mechanism that is moved manually to cause the firearm to discharge
5. , A supply or quantity of bullets and shells
6. , Flat ended and used for target shooting
9. , device that blocks the action to prevent firearm shooting until safety is released it pushed to "off position"
10. , An explosive mixture of potassium nitrate,charcoal,and sulfur used in gunnery
11. , A weapon that shoots a projectile using gunpowder
15. , The handle of the firearm
19. , the metal tube that the projectile travels through