Why should different gauge shot shells not be mixed together?

Mixing different gauge shot shells can lead to dangerous situations, particularly because a smaller gauge shell can fit into a larger gauge shotgun. If a shooter inadvertently shoots a smaller gauge shell in a larger gun, it can cause a serious malfunction, such as a blockage in the barrel. This blockage can result in catastrophic failure of the firearm when the next shell is fired, potentially leading to injury or damage.

This critical safety concern emphasizes the importance of using only the appropriate gauge shells that match the specifications of the firearm. Ensuring compatibility of the ammunition with the firearm not only guarantees proper functionality but also plays a vital role in maintaining the safety of the shooter and those nearby.