In the context of firearm malfunctions, what does a 'double feed' signify?

A 'double feed' signifies that multiple rounds are being fed into the chamber. This malfunction occurs when the firearm attempts to load two cartridges into the chamber at the same time, typically from the magazine. The result is that one round may attempt to enter the chamber while another is already there, which creates a blockage and prevents the firearm from cycling properly.

Understanding the mechanics behind this malfunction is crucial for firearm handling and troubleshooting. A double feed can arise due to various issues, such as an overloaded magazine or a failure of the extractor to properly remove a spent casing, leading to a jamming of the action. Recognizing this type of malfunction allows the operator to take appropriate corrective measures, ensuring the firearm functions safely and effectively.

In contrast, the other options describe different issues: having more than one round in the chamber refers to a situation where there is already a round present when another tries to load; a round stuck in the magazine indicates a failure to feed which isn’t itself a double feed; and a misalignment of the slide would affect the overall functioning of the firearm but does not specifically describe the double feed malfunction.