NRA Study Guide 2026
Everything you need to pass the NRA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 NRA Exam Format at a Glance
📚 NRA Topics to Study (46)
✍️ Sample NRA Questions & Answers
1. What is the primary reason a gunsmith would use a chamber reamer stop collar when chambering a barrel?
A stop collar limits the reamer's cutting depth, allowing the gunsmith to creep up on the correct headspace incrementally without accidentally cutting the chamber too deep.
2. What determines the lock time of a firearm?
Lock time is the elapsed time between trigger release and primer ignition, influenced by firing pin weight and spring tension.
3. What is 'sight radius' on a firearm?
Sight radius is the measured distance between the front and rear sights; a longer radius reduces angular aiming error and generally improves practical accuracy.
4. Which wood grain orientation provides the greatest impact resistance for a rifle stock?
Straight vertical grain (quarter-sawn) running lengthwise is strongest because wood fibers align with the primary stress direction during recoil.
5. What does the Rockwell hardness scale 'C' (HRC) primarily measure in gunsmithing contexts?
The Rockwell C scale uses a diamond cone indenter under load to measure surface hardness, commonly used to verify heat treatment results on hardened firearm parts.
6. When fitting a new wood stock blank to a metal action, what is the correct sequence of inletting?
Starting with the action inletting establishes the critical fit at the receiver, then extending the barrel channel ensures proper alignment throughout.
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How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. We have not yet matched this exam's facts to an official source, so confirm fees, dates and rules with the exam body. Not reviewed by a subject-matter expert. Editorial policy