These are the 5 universal firearm safety rules. You will find these at every shooting range and you should commit these to memory. Everyone you shoot with, should also know these rules. These rules are designed to showcase that using firearms is a serious task. These rules are here to keep everyone safe.
Safe Direction
Always keep the muzzle pointed in a safe direction. Do not point at anything you do not wish to destroy.
Trigger Discipline
Keep your finger off the trigger and outside the trigger guard until you are ready to fire.
Always Assume Loaded
Treat every firearm as if it is loaded.
Target Idenification
Know your target, its surroundings, and what is beyond it..
Safe Handling
Unload guns when not in use and keep them locked, ideally with ammunition stored separately