Which of the following statements is true regarding firearm safety?

The statement about a hang fire being when the primer fails to ignite the powder is accurate because a hang fire is a dangerous situation where there is a noticeable delay between the trigger being pulled and the cartridge firing. This can occur due to an inadequate ignition of the gunpowder, where the primer goes off, but the powder takes longer than normal to ignite. Understanding this concept is crucial for firearm safety, as shooters must remain vigilant and follow proper procedures if they experience a hang fire.

In contrast to this correct statement, other options focus on either unsafe practices or misconceptions about firearm handling. Carrying more than one caliber could complicate a situation without necessarily improving safety, as it requires proficiency in multiple weapons. Firing magnum loads frequently may not be necessary for any type of maintenance and could lead to misuse or mishandling of firearms. Finally, immediately firing after a misfire is dangerous; it doesn’t allow for the necessary precautions to safely deal with a potentially live round that has not fired as expected.