SDI Firearms Inspection and Troubleshooting Practice Exam – All Questions

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Accidental Discharge vs. Negligent Discharge: What You Need to KnowTrue or False: An accidental discharge is the same exact thing as a negligent discharge.Choosing the Right Tool for Polishing Shotgun ChambersWhat product line is recommended for polishing a shotgun chamber when a lathe is not available?Common Causes of Firearm Ejection Failures You Should KnowWhich of the following is a common cause of a failure to eject?Discover Common Firing Failures in Gas-Operated FirearmsWhat can wear out and lead to firing failures in a gas-operated firearm?Discover the Key Components of a Lever Action Feeding AssemblyHow many main components are present in a lever action feeding assembly?Discover the Main Types of Recoil Operation in FirearmsWhat are the three major types of recoil operation in firearms?Discover the Role of the Transfer Bar in Double Action RevolversWhich safety feature is included on a firing pin that is included in the frame of a double action revolver?Discover Why the Bottleneck Centerfire Rifle Cartridge Measures Headspace at the Datum LineWhich type of cartridge's headspace is measured at the datum line?Explore the Crucial Role of the Magazine in Gas-Operated FirearmsWhat is the primary role of the magazine in a gas-operated firearm?Explore the Essential Parts of a Lever Action Firearm's Feeding AssemblyWhat are the basic parts of the feeding assembly of a lever action firearm?Explore the Importance of the Effort Arm in Lever-Delayed Blowback FirearmsOn a lever-delayed blowback firearm, what is the shorter arm also referred to as?Explore the Key Gas-Operated Firearm DesignsWhat are the three basic gas-operated designs?Exploring Different Types of Firearm OperationsIn which type of operation is the action of the firearm operated by the force of the shooting cartridge?Exploring the Dynamics of Blowback Firearms and Their Operation ModesWhich of the following statements is accurate about blowback firearms?Exploring the Role of Hand Reamers in Firearm PrecisionTrue or False: Hand reamers include an integral pilot to help keep the reamer centered in the chamber.How Does the Hammer Cocking Mechanism Work in Break-Action Firearms?In some break-action firearms, what action cocks the hammer?How Inertia Drives Firearm Mechanics and Maintaining FunctionalityIn inertia-driven firearms, what occurs when the inertia spring drives the carrier back faster than the barrel and bolt?How to Properly Operate the Charging Handle on Gas-Operated FirearmsDuring the feeding step of gas-operated firearms, the operator begins by doing what?Identifying Key Issues in Lever Action Firearms: The Role of the Loading ArmWhat primary issue arises in lever action locking when the loading arm is malfunctioning?Learn About Short Stroke Gas Systems in FirearmsWhat type of gas operated design is characterized by a short stroke?Manual Actions in Firearms: How Much Force is Really Needed?True or False: Manual Actions require the operator to use a moderate to heavy force to close the breach.Navigating the Risks of Squib Load Malfunctions in FirearmsA _____________ malfunction is caused by improper reloading.Not All Short Recoil Actions Use a Tilting BarrelTrue or False: All short recoil operated actions use a tilting barrel during unlocking and locking.Timing is Everything in Lever Action Rifle PerformanceWhich element is essential for the proper operation of each assembly in a lever action rifle?Understand How a Broken Hammer Strut Affects Your Single Action RevolverIf the hammer strut is broken, what issue may arise in a single action revolver?Understand the Right Headspace Location for Rimfire CartridgesWhat is the correct headspace location for rimfire cartridges?Understanding Blowback Action in FirearmsThe blowback action is mostly reliant upon which factor?Understanding Blowback Firearms and Their Magazine-Fed DesignBecause of the design type, blowback firearms are always:Understanding Bolt Face Damage in Bolt Action RiflesIs it true that on a bolt action rifle, a damaged bolt face necessitates recutting the chamber to SAAMI specifications?Understanding Cocking Malfunctions in Bolt Action RiflesWhat could cause a cocking malfunction in a bolt action rifle?Understanding Common Feeding Problems in Break-Open ShotgunsCommon feeding problems in break-open shotguns often result from which condition?Understanding Common Issues with Blowback FirearmsWhich of the following is NOT a common issue with blowback firearms?Understanding Common Malfunctions in Bolt Action RiflesWhat is the most common cause of malfunctions related to a failure to fire in a bolt action rifle?Understanding Common Malfunctions in Lever and Pump Action FirearmsA rough chamber in a lever or pump action firearm may cause which malfunction?Understanding Common Malfunctions in Pump Action FirearmsWhich malfunction could result from a failure to extract in a pump action firearm?Understanding Common Malfunctions in Pump Action ShotgunsIn a pump action shotgun, what is a common factor leading to malfunction?Understanding Common Malfunctions in Recoil-Operated FirearmsWhat is the most common reason for failure to fire malfunctions in recoil-operated firearms?Understanding Effective Techniques for Clearing Firearm MalfunctionsTo push up against the bolt carrier for clearing a malfunction, what can be used?Understanding Excessive Headspace in Blowback FirearmsWhich condition can lead to cartridge case damage in blowback firearms?Understanding Extraction and Unlocking Malfunctions in FirearmsA roughly machined chamber can cause which type of malfunction in a gas delayed blowback firearm?Understanding Factors That Lead to Feeding Failures in FirearmsWhat factors can contribute to a failure to feed?Understanding Feeding Issues in Lever Action FirearmsWhen diagnosing feeding issues, which assembly should first be inspected in a lever action firearm?Understanding Feeding Issues in Lever Action RiflesWhich component is difficult to diagnose due to separate assemblies in a lever action rifle?Understanding Finish Reamers for Shotgun Chamber RefinementWhich type of reamer is specifically designed to recut the chamber of a shotgun?Understanding Firearm Action Mechanics and Pressure DynamicsTrue or False: Generally, the straight blowback action design is found on firearms that use high-pressure centerfire cartridges.Understanding Firearm Design: The Comparison of Old and New MechanismsTrue or False: Older single action firearms typically have more parts than newer designs.Understanding Firearm Malfunctions: Key Components of Short-Recoil ActionWhich parts may cause a malfunction in a short-recoil operated action if they are broken or damaged?Understanding Firing Out of Battery in Blowback FirearmsWhich malfunction could arise from excessive headspace in a blowback firearm?Understanding Firing Pin Issues in Pump Action ShotgunsWhich part is NOT likely to cause problems with firing pin operation in a pump action shotgun?Understanding Firing Pin Issues in Pump Action ShotgunsWhich two parts, if damaged, can cause firing pin issues in a pump action shotgun?Understanding Fixed Ejectors and Their Role in Firearm DesignAre fixed ejectors in a firearm spring-driven and found inside the bolt head?Understanding Hammer Operation in Single Action RevolversDuring what stage does the hammer fall in a single action revolver?Understanding Headspacing: The Role of the Extractor in Firearm MeasurementsWhat happens when headspacing a cartridge with the extractor installed?Understanding How Break Action Firearms WorkWhich type of firearm "pushes" the extracted round from the chamber?Understanding how gas-operated firearms work can enhance your expertiseWhich type of firearm operation uses gas to cycle the action?Understanding How Recoil and Blowback Operated Actions Work in FirearmsWhat type of action requires the energy from the discharged cartridge to cycle itself?Understanding How Revolvers Work: The Feeding Process ExplainedTrue or False: The feeding process in revolvers involves loading rounds into the cylinder.Understanding How Straight Blowback Firearms OperateTrue or False: Straight blowback firearms are locked by the bolt engaging locking lugs within the barrel.Understanding How the Loading Arm Assembly Functions in Lever Action FirearmsThe lever action design relies upon the timing of which assembly for proper function?Understanding How to Load the Internal Box Magazine in FirearmsHow is the internal box magazine in a firearm typically loaded?Understanding Limp Wristing and Its Impact on Firearm FunctionalityWhat is another term for the “Limp Wristing” malfunction in manually operated firearms?Understanding Loading Arm Issues in Lever Action FirearmsWhich part of a lever action firearm commonly causes issues if it is dirty, worn, or broken?Understanding Malfunctions in Gas-Operated FirearmsA malfunction due to insufficient gas being redirected in a gas-operated firearm could be caused by what?Understanding Misfires: What to Look for in FirearmsWhat could be the most likely cause of a misfire even if a primer is struck correctly?Understanding Neck Splits in Firearm MalfunctionsIn the context of firearm malfunctions, what does "neck split" refer to?Understanding Negligent Discharge: The Role of Trigger DisciplineWhich action can contribute to a negligent discharge?Understanding Operator Error in Pump Action FirearmsTrue or False: In pump action firearms, operator error is the most common reason for feeding issues.Understanding Pump Action Cocking Malfunctions and Their CausesWhat is the most likely cause of a pump action cocking malfunction?Understanding Recoil-Operated Actions in FirearmsAre all recoil-operated actions fed by a magazine?Understanding Safety Features in Firearms: The Role of the Transfer BarWhich part may not be present in older single-action firearms?Understanding Safety Standards for Ammunition and FirearmsWhich of the following statements is false about safety and ammunition?Understanding Short Stroke in Pump-Action FirearmsWhich malfunction describes a pump action failing to hold the next round?Understanding Short Stroking Malfunctions in Gas-Operated FirearmsIn which ways can a "short stroking" malfunction occur in gas-operated firearms?Understanding Shotguns: Why the Winchester 97 Stands OutWhich of the following shotguns does not utilize a bolt carrier?Understanding Squib Loads and Their Impact on Firearm SafetyWhich malfunction occurs when the bullet does not exit the barrel?Understanding the Best Methods for Drilling Through Hardened MetalWhich of the following methods can be employed to aid in drilling through hardened metal?Understanding the Best Tool for Screw Size IdentificationWhat tool is recommended to determine the size of a screw?Understanding the Causes of Failure to Extract in FirearmsWhich of the following is a cause of a failure to extract?Understanding the Challenges of Fault Diagnosis in Lever Action FirearmsWhich factor is most likely to complicate fault diagnosis in lever action firearms?Understanding the Click: What Sounds Indicate Proper Firearm EngagementWhat sounds indicate proper engagement when the trigger is pulled after releasing it?Understanding the Common Steps in Firearms Operation CyclesWhich steps in the cycle of operation are the same for both straight blowback and delayed blowback systems?Understanding the Concept of Light Strike in Shotgun OperationWhat does the term 'light strike' refer to in shotgun operation?Understanding the Critical Role of Cycling in Recoil-Operated FirearmsWhat is one important factor in the design of a recoil-operated firearm?Understanding the Crucial Role of the Extractor in Firearm OperationWhat role does the extractor play in firearm operation?Understanding the Cylinder Gap and Its Importance in Firearm FunctionalityWhat does the term "cylinder gap" refer to in firearms?Understanding the Danger of a Cook Off in FirearmsA "cook off" in firearm terminology is caused by what?Understanding the Differences Between Gas-Operated and Striker-Fired FirearmsTrue or False: The gas-operated firearm is a striker-only platform.Understanding the Effects of Damaged Bolt Lugs on Firearm PerformanceWhich malfunction may be caused by a damaged lug on the bolt?Understanding the Elevator and Lifter Mechanism in Tubular Fed FirearmsIn tubular fed, recoil-operated actions, what must be tripped by the bolt to hinge down?Understanding the Failure to Eject: A Common Firearm MalfunctionWhat malfunction is indicated by a cartridge that remains in the chamber after firing?Understanding the Feeding Process in Blowback FirearmsTrue or False: Regardless of feed type, the first step in the feeding process of a blowback firearm is the same.Understanding the Feeding Process in Gas-Operated FirearmsDuring which step of a gas-operated firearm does the bolt pass over the top cartridge in the magazine?Understanding the First Step in Clearing a Bolt Override MalfunctionWhich step is first in clearing a bolt override malfunction?Understanding the Impact of a Broken Cylinder Release AssemblyWhat happens if the cylinder release assembly is broken?Understanding the Impact of a Broken Extractor Claw on Firearm PerformanceIf the extractor claw is broken, what may happen?Understanding the Impact of a Sprung Ejector on Blowback ActionWhat happens if a blowback action utilizes a sprung or powered ejector?Understanding the Impact of a Weak Magazine Spring in Gas-Operated FirearmsWhat happens if the magazine spring is weak in a gas-operated firearm?Understanding the Impact of Chamber Issues on Gas-Operated FirearmsA short or rough chamber on a gas-operated firearm can cause which type of malfunctions?Understanding the Impact of Excessive Headspace in Blowback FirearmsExcessive headspace in a blowback firearm can cause which of the following?Understanding the Impact of Incompatible Ammunition on Blowback Action SystemsWhat could be a result of using ammunition that is incompatible with a blowback action system?Understanding the Impact of Recoil Spring Failure on Your Firearm's ExtractorIf the recoil spring on a gas operated firearm is broken, what effect does it have on the extractor?Understanding the Impact of Short Stroke Designs in FirearmsIn the context of firearms, what does a "short stroke" design imply?Understanding the Implications of Hammer Follow MalfunctionsWhich of the following can happen during a "hammer follow" malfunction?Understanding the Importance of Checking Headspace When Replacing Bolt or Slide on FirearmsWhat must you do each time you replace the bolt or slide of a gas-operated firearm?Understanding the Importance of Cycling the Action to Clear Obstructions in Your RifleWhat happens after shaking the rifle to clear an obstruction?Understanding the Importance of Cylinder Gap in Double Action RevolversWhat is the general measured range of cylinder gap in a double action revolver?Understanding the Importance of Extractor Hook Interaction in Bolt Action RiflesWhat design feature helps a controlled feed bolt action rifle operate more smoothly?Understanding the Importance of Ogive in Ball AmmunitionWhat term is used to describe the shape of the tip of ball ammunition that can affect chambering?Understanding the Importance of Pointing Your Weapon Downrange After a Hang FireHow long should you point the weapon downrange after a hang fire malfunction?Understanding the Importance of Proper Firearm Safety ChecksWhat is required to ensure a weapon is safe once the action is open?Understanding the Importance of Quick Action in Fixed EjectorsTrue or False: With a fixed ejector, the action must be manipulated quickly to ensure proper ejection of the round.Understanding the Importance of Screw Specifications in FasteningIn the screw specification "3mm x 0.5," what does the "0.5" represent?Understanding the Importance of Setting the Safety When Testing a Firearm's Fire Control GroupWhat is the first step when testing a firearm's fire control group with snap caps?Understanding the Importance of the Cocked Position in RevolversRevolvers will lock when the hammer is in which position?Understanding the Indications of a Light Strike Malfunction in FirearmsWhat is a common indication of a light strike malfunction?Understanding the Indications of a Pierced Primer in FirearmsWhat type of ammunition malfunction is indicated by a pierced primer?Understanding the Insights of Fired Cases in Firearm OperationWhat insight can fired cases provide regarding the firearm operation?Understanding the Key Component in Gas-Delayed Blowback FirearmsWhich component primarily defines a gas-delayed blowback firearm's operation?Understanding the Key Differences Between Hammer Fired and Striker Fired FirearmsWhat is the major difference between hammer fired and striker fired designs?Understanding the Key Differences Between Push Feed and Control Feed Bolt Action RiflesWhat is the primary distinction between a push feed and a control feed bolt action rifle?Understanding the Key Role of Action Parts in Firearm Ammunition FeedingWhen troubleshooting firearms, which component influences ammunition feeding directly?Understanding the Locking Phase in Firearms OperationsIs the firearm in the locking step of the cycle of operations, or the unlocking phase?Understanding the Locking Procedure of a Double Action RevolverWhich of the following locking procedures of a double action revolver happens last?Understanding the Locking Step in a Single Action RevolverWhen is the locking step of a single action revolver completed?Understanding the Locking Step of Double Action RevolversTrue or False: The locking step of the double action revolver happens when the hammer is in the cocked position.Understanding the Long Recoil Feeding Step in FirearmsWhen does the long recoil feeding step occur?Understanding the Mechanics of Recoil-Operated Firearms and Their Key ComponentsIn a recoil-operated firearm, which component moves with the action?Understanding the Mechanism Behind Bolt-Action RiflesWhich action type is primarily used in bolt-action rifles?Understanding the Mechanism Behind Gas-Delayed Blowback FirearmsBefore the action or slide begins to move rearward in a gas-delayed blowback firearm, what must occur?Understanding the Mechanism of Break-Open Action ShotgunsIn break-open action shotguns, how are the locking lugs typically secured?Understanding the Misfire: A Deep Dive into Firearm MalfunctionsWhich firearm malfunction is most related to faulty ammunition?Understanding the Optimal Feed Lip Orientation for FirearmsIn a detachable box magazine, how should the feed lips be oriented for optimal performance?Understanding the Pump Action of the Winchester 97 ShotgunWhat type of action does the Winchester 97 shotgun operate on?Understanding the Purpose of Annealing When Drilling Through Hardened MetalWhat is the purpose of annealing the hole when drilling through hardened metal?Understanding the Reliability of Gas-Operated Firearms and Operator ErrorTrue or False: Gas-operated actions are highly susceptible to malfunctions due to operator error.Understanding the Right Feed Rate When Drilling Through MetalTrue or False: A common rule for drilling through metal is that the larger drill bit should use a slower feed rate of the drill.Understanding the Risks of Insufficient Headspace in FirearmsWhat is the consequence of having too little headspace in a firearm?Understanding the Risks: When a Revolver's Cylinder Gap is Too LargeWhich of the following malfunctions can take place if the cylinder gap is too large?Understanding the Role of a Field Gauge in Firearms InspectionWhen using a Field Gauge, what should the action do?Understanding the Role of Components in Recoil-Operated FirearmsWhich component is typically not involved in malfunctions of recoil-operated firearms?Understanding the Role of Gas Pistons in Firearm OperationWhich firearm design utilizes a gas piston in the unlocking phase of the cycle of operations?Understanding the Role of Locked Breech in Recoil-Operated FirearmsEach recoil-operated design utilizes what kind of breech?Understanding the Role of Magazines in Firearm FunctionalityWhat is a common term used for the mechanism that holds cartridges in place until fired?Understanding the Role of Screws in Firearms Safety and FunctionalityTrue or False: Both screws pictured are for use in metal parts.Understanding the Role of Snap Caps in Firearm Malfunction TroubleshootingSnap caps are designed to identify which type of malfunctions?Understanding the Role of the Bolt in Bolt-Action FirearmsWhat is the primary action of the bolt in a bolt-action firearm?Understanding the Role of the Bolt in Gas-Operated FirearmsWhat is the action of the bolt in a gas-operated firearm during firing?Understanding the Role of the Bolt in Gas-Operated FirearmsWhich part of a gas-operated firearm is responsible for cycling the action?Understanding the Role of the Cylinder Bolt in Double-Action RevolversWhat is the primary function of the cylinder bolt in a double-action revolver?Understanding the Role of the Extractor in Blowback FirearmsWhich mechanical part on the firearm's action can impede the locking procedure on a blowback action?Understanding the Role of the Feeding Device in FirearmsWhich part of the firearm is specifically designed to hold ammunition?Understanding the Role of the Follower in Lever Action FirearmsWhat is the role of the follower in the feeding assembly of a lever action firearm?Understanding the Role of the Hammer Spring in Firearm MechanicsWhat part must generate enough force for the hammer to properly strike the primer?Understanding the Role of the Heat Stop in FirearmsWhat function does the heat stop serve in a firearm?Understanding the Role of the Locking Block in Firearm FunctionalityWhat component interacts with the barrel extension to lock the bolt with the barrel?Understanding the Role of the Trigger Spring in Single Action FirearmsWhich component drives the sear surface of the trigger in a single action firearm's cocking cycle?Understanding the Role of Transfer Bars in Firearm SafetyWhat is the primary function of a transfer bar in firearms?Understanding the Safest Type of Sear Engagement in FirearmsWhich type of sear engagement is considered the safest?Understanding the Signs of a Worn Firing Pin in FirearmsWhat is a common indicator of a worn firing pin in firearms?Understanding the Similarities Between Blowback and Recoil Operated FirearmsWhat is the fundamental similarity between blowback operated firearms and recoil operated firearms?Understanding the Similarities in Tilting and Rotating Bolt FirearmsWhich characteristics are similar in both tilting- and rotating bolt gas operation firearms?Understanding the Steps After Setting Your Firearm to SafeAfter moving the selector lever to the "safe" position, which is the next step in clearing a malfunction?Understanding the Three Main Designs of Delayed Blowback ActionWhich of the following are the three main designs of a delayed blowback action?Understanding the Two-Stage Feeding Process in RevolversTrue or False: The feeding step of both a double action and single action revolver is a two-stage process.Understanding the Unique Features of Military AmmunitionWhat feature distinguishes military ammunition from standard types?Understanding the Unlocking Step of Single Action FirearmsWhen does the unlocking step of a single action firearm occur?Understanding Threads Per Inch (TPI) in FirearmsWhat does "TPI" stand for in firearms terminology?Understanding What Happens When a Firearm with a Decocker is in the Safe PositionWhat should occur when a firearm equipped with a decocker is in the "safe" position?Understanding what happens when you pull the hammer back during cockingWhat occurs when the operator pulls the hammer to the rear during the cocking cycle?Understanding What Happens When You Test a Firearm's Action MechanismTo test if the action mechanism is functioning, what should happen when the trigger is continuously depressed during cycling?Understanding When the Ejector Kicks the Empty Case in Long-Recoil Operated FirearmsWhen does the ejector kick the empty case from the breech in a long-recoil operated firearm?Understanding When the Hammer Doesn’t Move After Trigger ReleaseWhat is indicated by released trigger and the hammer not moving in a firearm's action?Understanding Why a Recoil-Operated Pistol Might Not FireWhy might a recoil-operated pistol not fire despite having ammunition?Understanding Why a Revolver's Trigger May Not ResetWhat is indicated if the trigger does not reset during a revolver's operation?Understanding Why Your Short Recoil Firearm's Slide Fails to Lock BackWhat malfunction could be indicated if the slide on a short recoil firearm fails to lock back?What Causes a Firearm to Fail to Feed?Which of the following parts, if damaged, will cause a failure to feed? Choose all that apply.What Causes a Light Strike in Break-Open Shotguns?If a shooter experiences a "light strike" when firing a break-open shotgun, what is a possible cause?What Causes a Single Action Revolver to Fail to Cock?Which of the following may cause a single action revolver to fail to cock if damaged?What Happens if the Interrupter in a Firearm is Damaged?If the interrupter in a firearm is damaged, what happens to the cartridges?What Happens When a Lever Action Rifle’s Feeding Assembly Malfunctions?What happens to cartridges when the feeding assembly of a lever action rifle is malfunctioning?What Happens When a Long-Recoil Firearm's Barrel Reaches Its Forward Position?What occurs when the barrel of a long-recoil operated firearm reaches its most forward position?What Happens When a Round Fails to Feed into the Chamber?What malfunction occurs when a round fails to feed properly into the chamber?What Happens When the Cylinder Bolt Spring Fails?If the spring that drives the cylinder bolt is damaged or worn, what may happen to the cylinder?What Happens When the Hammer or Striker Spring in a Gas-Operated Firearm is Damaged?What occurs on a gas-operated firearm when either the hammer or striker spring is damaged?What Happens When the Ratchet on a Revolver BreaksWhat occurs when the ratchet on a revolver is broken?What Happens When the Trigger Spring Fails in a Single Action Revolver?What could potentially happen if the trigger spring fails in a single action revolver?What Happens When You Pull the Trigger with the Safety On?When the trigger is depressed while the safety is in the safe position, what should occur?What You Need to Know About a Raised Hammer on a Single Action RevolverWhat indicates that a single action revolver's hammer is cocked?What You Need to Know About Protecting Your Firearm's Bolt from HeatWhich of the following products is designed to protect a bolt's temper from excessive heat?What You Need to Know About the Ledge on a Pump Action FirearmOn a pump action firearm, what are trapped by the ledge on the trigger?What’s the First Step to Fixing a Firearm Malfunction?What is the best initial step in troubleshooting a firearm malfunction?Why Annealing is Key to Preventing Neck Splits in Firearm ReloadingWhen reloading, you must anneal the cartridges periodically to avoid which malfunction?Why Diagnosing a Double Action Revolver Can Be More Complex Than You ThinkTrue or False: A double action revolver is generally easier to diagnose than a single action revolver.Why Gas Operated Actions Reduce User Errors in Firearm PerformanceGas operated actions are less likely to experience which type of malfunctions?Why the Cylinder Bolt is Crucial for Safe FiringWhich part must be functioning properly for the locking mechanism to engage during firing?Why the Ejector Is Key in Blowback FirearmsWhat is the purpose of an ejector in a blowback firearm?Why Troubleshooting Lever Action Firearms Can Be Quite a ChallengeWhy is troubleshooting lever action firearms particularly challenging?Why Using a Nylon Hammer on Your Receiver MattersUsing a nylon or rubber hammer on the receiver is intended to achieve which goal?Why You Should Always Check Your Screw Size for Firearms and MachineryWhat might indicate that you should check the screw size for machinery or firearm work?Why you should remove the extractor when headspacing a cartridgeWhy is it not advisable to headspace a cartridge with the extractor in place?

More practice questions

These questions are part of the practice quiz. Start practicing

What factor is most crucial for maintaining the reliability of a blowback firearm?
Failing to disengage which safety feature can lead to a firearm feeling like it has a "dead" movement?
When should the initial function check be performed?
What is one of the main purposes of snap caps?

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