RSO Firearm Stoppages and Malfunctions Questions and Answers — Questions and Answers
Question 1: A shooter on the line experiences a noticeably weak report, almost no recoil, and the action on their semi-automatic pistol fails to cycle. Which of the following is the most probable and dangerous malfunction?
- Failure to eject (stovepipe)
- Hang fire
- Squib load (Correct answer)
- Double feed
Correct answer: Squib load
A squib load is a cartridge with insufficient powder, causing the bullet to lodge in the barrel. The described symptoms—a weak sound ('pop instead of bang'), light or no recoil, and failure to cycle the action—are classic indicators of a squib. This is extremely dangerous because firing another round into the obstructed barrel can cause a catastrophic firearm failure.
Question 2: An RSO observes a shooter's firearm go "click" instead of firing. The RSO's most critical and immediate instruction to the shooter should be based on the potential for what type of event?
- A squib load
- A hang fire (Correct answer)
- A failure to feed
- An out-of-battery discharge
Correct answer: A hang fire
A "click" with no discharge could be a misfire or a hang fire (a delayed discharge). Since it's impossible to know the difference immediately, the safest procedure is to treat it as a potential hang fire. The RSO must instruct the shooter to keep the firearm pointed in a safe direction for at least 30 to 60 seconds before attempting to clear the firearm.
Question 3: From a Range Safety Officer's perspective, what is the key difference between a firearm "stoppage" and a "malfunction"?
- A stoppage only happens with rifles, while a malfunction can happen with any firearm.
- A stoppage is typically clearable by the shooter using immediate action drills, whereas a malfunction often indicates a broken part requiring an armorer. (Correct answer)
- A stoppage is caused by faulty ammunition, while a malfunction is always caused by a dirty firearm.
- A stoppage requires a complete field strip to fix, while a malfunction can be cleared by tapping the magazine.
Correct answer: A stoppage is typically clearable by the shooter using immediate action drills, whereas a malfunction often indicates a broken part requiring an armorer.
A stoppage is an interruption in the cycle of operation that a shooter can typically resolve with immediate action (e.g., tap, rack). A malfunction is a mechanical failure of the firearm itself (e.g., broken extractor, firing pin) that prevents it from working as designed and usually requires diagnosis and repair by a qualified person like an armorer or gunsmith.
Question 4: A shooter's semi-automatic pistol fails to completely close after firing a round, with the slide stopping slightly short of its forward-most position. This condition is known as:
- Stovepipe
- Failure to extract
- Hammer follow
- Failure to return to battery (Correct answer)
Correct answer: Failure to return to battery
When the slide or bolt of a firearm is not fully in its proper position for firing, it is described as being "out-of-battery" or having a "failure to return to battery." This can be caused by a weak recoil spring, a dirty chamber, or an obstruction. Most modern firearms have a disconnecter that prevents them from firing out of battery, which is a critical safety feature.
Question 5: Which of the following describes a "stovepipe" stoppage?
- Two live rounds attempting to feed into the chamber at the same time.
- A live round failing to be stripped from the magazine.
- A fired cartridge case getting trapped vertically in the ejection port as the slide closes. (Correct answer)
- The trigger is pulled, but the primer fails to ignite, resulting in a "click."
Correct answer: A fired cartridge case getting trapped vertically in the ejection port as the slide closes.
A stovepipe, also known as a failure to eject, occurs when an empty cartridge case is not fully thrown clear of the firearm and becomes trapped in the ejection port, often resembling a chimney or stovepipe. It is a common type of stoppage that can usually be cleared by the shooter.
Question 6: A shooter experiences a failure to extract, where the spent casing remains in the chamber, and the slide attempts to feed a new round behind it. This specific type of jam is commonly referred to as a:
- Squib load
- Light primer strike
- Double feed (Correct answer)
- Hang fire
Correct answer: Double feed
A double feed occurs when a spent case is not extracted from the chamber and the action attempts to load a new, live round from the magazine behind it. This creates a complex jam that cannot be cleared by a simple 'tap, rack' and requires the RSO to guide the shooter through removing the magazine and cycling the action to clear both the spent case and the live round.
RSO Firearm Stoppages and Malfunctions Questions and Answers
A shooter on the line experiences a noticeably weak report, almost no recoil, and the action on their semi-automatic pistol fails to cycle.
Which of the following is the most probable and dangerous malfunction?