What are common ammunition malfunctions?

A common understanding of ammunition malfunctions includes the types mentioned in the correct choice, which specifically addresses issues related to how ammunition can fail to function properly when fired.

High primers occur when the primer is positioned too far out of the cartridge case, potentially leading to failure to fire or even dangerous situations if the firing pin strikes it too forcefully. Squib loads refer to a round that has insufficient power to exit the barrel, which can result in a blockage and potentially dangerous situations if another round is fired behind it. A crimped or damaged casing can create serious malfunctions, as it might not allow proper pressure build-up during firing or may lead to excessive extraction issues. An inverted primer, where the primer is seated the wrong way around, can prevent the round from firing properly.

In summary, these issues are directly related to the mechanical and functional integrity of the ammunition itself, making them critical concepts for anyone training or working with firearms. Understanding these common malfunctions aids in troubleshooting and ensuring safe firearm handling practices.