What is the most common cause of failure to fire stoppage in firearms?

The most common cause of failure to fire stoppage in firearms is an empty chamber. This occurs when there is no cartridge loaded into the firing chamber, which prevents the firearm from being able to fire even when the trigger is pulled. In situations where shooters believe they are ready to fire, checking that there is indeed a round in the chamber can often resolve the issue.

Other factors like a misfired cartridge, obstructed barrel, and faulty magazine can certainly cause stoppages as well, but they tend to be less frequent occurrences compared to simply not having a round chambered. Understanding this fundamental aspect of firearm operation is crucial for anyone involved in law enforcement or handling firearms, as it can greatly impact readiness and response in critical situations.