Some years ago I acted as crew on an ultra-low budget film. We didn’t have the budget for simulated firearms so we had to use real ones. Everyone involved in the project agreed that extreme care was warranted. We made certain that there was no live ammunition anywhere near the set. Firearms were locked up unless they were being held by a trained crew member or an actor. The actors were all taught the basics of how their firearms operated and how to check the chambers. The prop handlers and actors checked every firearm every time it changed hands, even when they had just watched the person who handed it to them check the chamber.

With all of that in place, we still insisted on following the other rules as well. Trigger discipline was maintained at all times, including while filming scenes. Camera angles were adjusted so that firearms never had to pointed at anyone or anything that we were not willing to damage. Actors were careful to keep their firearms pointed in the safe directions that had been arranged, even when simulating their use.

It was a fair amount of trouble and it added time to a very tight operation, but there were absolutely no incidents, or near incidents, or concerns that there might be an incident. That is how everyone who handles firearms should treat them in real life. It takes a little time and attention, but it isn’t difficult. And following even one of the safety rules makes it impossible for anyone to be hurt accidentally.

Learning and following the safety rules is a cheap investment for the benefit of not accidentally killing someone.