RSO Cheat Sheet 2026

The 30 highest-yield RSO facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What does the term 'near miss' mean in the context of range incident reporting? → An event that had the potential to cause injury or damage but did not
2. A shooter's semi-automatic pistol fires continuously without the shooter pulling the trigger (runaway gun). What should the RSO command? → Keep the gun pointed downrange and release the magazine, then clear the chamber when empty
3. Which of the following constitutes a 'downrange hazard' that an RSO must identify during a range inspection? → Damaged or improperly positioned target stands that could cause ricochets
4. A 'stovepipe' malfunction is most accurately described as: → An empty case caught vertically in the ejection port preventing slide closure
5. What is the safest way to store firearms? → Locked, unloaded, ammo separate
6. How should an RSO communicate the 'commence firing' command to ensure all shooters hear it clearly on a loud outdoor range? → Use a verbal command paired with a visual signal such as a green flag or light
7. Which of the following should be covered during the emergency action plan portion of a range safety briefing? → Location of first aid kits, emergency contacts, and evacuation routes
8. How should communication be maintained during range operations? → Clear and continuous communication
9. What is the recommended wait time before opening a bolt-action or semi-auto rifle after a suspected hang-fire? → 30 seconds
10. When should an RSO call an immediate ceasefire? → Whenever any unsafe condition or unsafe act is observed
11. An RSO notices a shooter using a firearm with a cracked stock. What should the RSO do? → Remove the shooter from the line and prohibit use of that firearm
12. What is a key component of emergency response planning? → Clear protocols and roles
13. A revolver fails to cycle to the next chamber after firing. What is the most likely cause? → A spent case protruding from a cylinder chamber blocking cylinder rotation
14. What is the correct order of steps when a shooter reports a suspected hangfire? → Keep firearm pointed downrange for 30 seconds, then safely unload
15. Why should an RSO avoid reading a briefing script verbatim without making eye contact with participants? → It prevents the RSO from observing participant reactions and confirming engagement
16. A shooter accidentally discharges a round that strikes the ceiling baffles. The RSO's first action should be: → Call a cease fire and ensure all personnel are uninjured before assessing damage
17. A shooter experiences a 'squib load' where the bullet lodges in the barrel. What is the RSO's immediate concern if the shooter fires another round? → A catastrophic barrel obstruction and possible firearm destruction
18. Which scenario presents the greatest risk of a squib load going undetected? → High-volume shooting with high-noise suppressed firearms or during a rapid-fire stage
19. Which condition describes a firearm that continues firing after the trigger is released on a semi-automatic platform? → Slam fire or runaway condition
20. During an outdoor briefing, wind makes it difficult for shooters to hear. What should the RSO do? → Reposition the group into a sheltered area or use written materials to supplement
21. What is the purpose of posting clearly visible range commands and rules at the entrance and firing line? → To ensure all users are informed of safety expectations before and during use
22. What is the first rule of firearm safety? → Treat every firearm as loaded
23. When using a public address (PA) system on a range, what communication practice should the RSO follow to ensure commands are understood? → Speak slowly and clearly, state the command, pause, then repeat it once
24. What does the term 'hot range' indicate to shooters and RSOs? → Firearms may be loaded and shooting is authorized or may resume at the shooter's readiness
25. When a participant indicates they have range experience and tries to skip the briefing, the RSO should: → Explain that the briefing is mandatory for all participants regardless of experience level
26. How should an RSO handle a briefing when a large group makes it difficult to maintain crowd control? → Divide the group into smaller cohorts and brief each group separately
27. Before shooting activities can begin, an RSO must conduct a thorough range inspection. Which of the following is a critical part of this inspection? → Checking that the target backers and berms are in safe, working condition.
28. Which document must be completed after any range incident involving injury or property damage? → Incident/accident report form
29. Which technique best ensures that shooters with hearing impairments receive an effective range safety briefing? → Using written handouts, visual aids, or a sign language interpreter
30. After completing a range safety briefing, an RSO should ask participants if they have questions primarily to: → Clarify any misunderstandings and confirm comprehension of the rules