[nomadking]

Originally Posted by Halcyon

It sounds like he forgot to follow protocols and all these factors contributed to the shooting.

It shouldn't have had live ammo anywhere near it. That is the responsibility of the armourer.

Link

Duties

In some areas the weapons master must be a licensed armourer when firearms are used as props.[2]
As of 1993, when Brandon Lee was killed by a gun believed to be loaded with blanks, the rules of the Alliance of Motion Picture and Television Producers required:[3]

• Someone certified for the weapon in use be present at all times
• Firearms must be checked before and after each take
• Firearms must be cleaned daily
• Firearms must be stored securely by the props master when not in use
• Loaded guns must never be pointed at anyone
• Protective clothing must be worn by everyone nearby when blanks are fired
• If firearms are to be fired directly at the camera, a plexiglass shield must be erected
• Only the person certified for the weapon or someone under their direct supervision may hand a weapon to an act
• As of 2021, when Helyna Hutchins was killed by a gun believed to be unloaded, the Industry-Wide Labor-Management Safety Committee's guidelines stressed that blanks can kill, that all firearms were to be treated as loaded and that "live" ammunition was never to be brought onto any set.[1][4] According to Local 44, a union that represents props masters, no members were on set when the shooting occurred.[5]