Why is it important to check for obstructions after a squib load?

The importance of checking for obstructions after experiencing a squib load lies primarily in the prevention of possible barrel damage or injury. A squib load occurs when a bullet is improperly loaded, resulting in insufficient propellant to propel the bullet completely out of the barrel. If another round is fired without first addressing this issue, the second bullet can become lodged behind the first, leading to a dangerous situation known as a barrel obstruction.

If the firearm is fired again with an obstruction present, significant pressure can build up in the barrel, potentially causing it to burst or leading to catastrophic failure of the firearm. This scenario can result in serious injury to the shooter and bystanders. Thus, taking the time to check for obstructions after a squib load is crucial to ensure safety and maintain the integrity of the firearm.