Only BBs, pellets, cartridges or shells designed for a particular gun can be fired safely in that gun. Most guns have the ammunition type stamped on the barrel. Ammunition can be identified by information printed on the box and sometimes stamped on the cartridge. Do not shoot the gun unless you know you have the proper ammunition. Wear eye and ear protection as appropriate.
Guns are loud and the noise can cause hearing damage.
They can also emit debris and hot gas that could cause eye injury. For these reasons, shooting glasses and hearing protectors should be worn by shooters and spectators. Never use alcohol or drugs before or while shooting. Alcohol, as well as any other substance likely to impair normal mental or physical bodily functions, must not be used before or while handling or shooting guns. Be aware that certain types of guns and many shooting activities require additional safety precautions.