2nd Rule
Firearms should be unloaded when not actually in use.

3rd Rule
Don't rely on your gun's safety. It is a mechanical device and it can fail. Refer back to the 1st Rule.

4th Rule
Be sure of your target and what's beyond it. Make sure that your shot will not penetrate your backstop. Also, if your shot goes over the backstop (or when you're hunting) it may travel quite a distance (in some cases over a mile.)

5th Rule
Use proper ammunition. Make sure that it is the proper caliber and in good condition.

6th Rule
If your gun fails to fire when the trigger is pulled, handle with care. Keep the firearm pointed down range and wait for at least one minute (in case of a hang fire which is a delayed shot due to a malfunctioning, slow burning primer in the bullet.) Clear the round afterwards. If in doubt, ask for assistance from a range officer or a more experienced shooter.

7th Rule
Always wear appropriate eye and ear protection when shooting.

8th Rule
Be sure the barrel is clear of obstructions before shooting. Visually inspect the barrel or pass a rod through it.

9th Rule
Don't alter or modify your gun and have it serviced regularly by trained professionals.

10th Rule
Learn the mechanical and handling characteristics of the firearm you are using. Read the manual or ask someone who is familiar with the gun.