When a rifle fires, a sequence of events takes place. After the firing pin strikes the primer, what is the next event in the sequence?

When a rifle fires, a sequence of events takes place. After the firing pin strikes the primer, what is the next event in the sequence?

• A. The primer explodes and sparks the gunpowder.
• B. The cartridge ejects from the chamber.
• C. The barrel expands and pressures release.
• D. The hammer drops and locks.

Answer: (A)

The next event is the primer detonating. When the firing pin strikes the primer, the primer’s explosive creates a small flash and enough heat to ignite the powder charge inside the cartridge. This ignition rapidly generates high-pressure gas that pushes the bullet down the barrel. The ejection of the cartridge case and other mechanical steps happen later in the cycle, not immediately after primer ignition. The firing action relies on that primer explosion to start the whole sequence, so this is the correct immediate next step.

The next event is the primer detonating. When the firing pin strikes the primer, the primer’s explosive creates a small flash and enough heat to ignite the powder charge inside the cartridge. This ignition rapidly generates high-pressure gas that pushes the bullet down the barrel. The ejection of the cartridge case and other mechanical steps happen later in the cycle, not immediately after primer ignition. The firing action relies on that primer explosion to start the whole sequence, so this is the correct immediate next step.