Final answer:
In hunting game birds with a centerfire shotgun, there is often a limit of a three-shell capacity, including one in the chamber and two in the magazine, but always check local regulations.
Step-by-step explanation:
When hunting game birds with a centerfire shotgun, regulations often stipulate that the shotgun must be limited to a three-shell capacity; this includes one shell in the chamber and two in the magazine. These regulations are designed to promote conservation and fair chase ethics. It is important to always check the specific hunting regulations in your area, as they can vary by location and the type of game you are hunting.