What sound indicates a possible squib load in a firearm?

A soft pop is indicative of a squib load in a firearm. A squib load occurs when a bullet is charged with insufficient powder or when there is a blockage in the barrel, leading to the bullet not having enough force to exit the barrel with the usual sound of a gunshot.

When a squib load occurs, the result is often a significantly reduced noise level compared to a normal shot, often described as a soft pop. This is crucial for recognizing a potential safety issue, as a squib may lead to a bullet being lodged in the barrel, which can create a dangerous situation if another round is fired without checking for the obstruction.

In contrast, a loud bang represents a typical firearm discharge, while no sound at all may imply a malfunction unrelated to squib loads. A hissing sound could indicate other issues such as a slow gas leak but is not characteristic of the squib load phenomenon. Understanding these differences is vital for safe firearm handling and ensuring that any issues are addressed promptly.