Where would you look on a shotgun to find out the gauge and chamber length?

The gauge and chamber length of a shotgun are typically found on the barrel. This is because the barrel is marked by the manufacturer to provide important information about the specifications of the shotgun. The gauge indicates the size of the shotgun, which reflects the diameter of the bore and correlates with the size of ammunition that can be used. The chamber length informs the user of the length of the shell that the shotgun is designed to accommodate safely. Knowing this information is essential for hunters and shooters to ensure they are using the appropriate ammunition for their shotgun, enhancing safety and performance.