How can you tell what choke a 12GA Savage model 30F barrel has?

To know what choke a 12GA Savage model 30F barrel has, examine the barrel’s exterior. The choke can be identified by the markings indicating its type. The letter “F” or “Full” indicates a full choke, while “M” or “Modified” indicates a modified choke. Some barrels also have a diamond-shaped pattern next to the choke marking, which indicates it has a Winchester choke.