In a pump action shotgun, what is a common factor leading to malfunction?

In the context of a pump-action shotgun, operator error is a common factor leading to malfunctions. This typically involves mistakes in the handling or operation of the shotgun, such as not fully cycling the action, failing to properly load or unload shells, or improper maintenance practices. For instance, if the operator does not pull back the fore-end completely during cycling, it can lead to failure to eject the spent shell, causing a jam.

While aspects like low ammunition quality, environmental conditions, and quality of machining can indeed contribute to malfunctions, they are often less frequent than mistakes made by the person operating the firearm. Operator error highlights the importance of proper training and familiarity with the firearm, ensuring that users understand the necessary steps for reliable operation, which is crucial in preventing malfunctions during use.