Each gun magazine has a different capacity, so it’s important to check your magazine’s specs before loading it. Most magazines will remain functional when left fully loaded for extended periods, but there is a small chance that the spring inside could weaken over time and cause feeding issues. For this reason, many people choose to rotate their ammo regularly by unloading and reloading their magazines every few months.
Ultimately, it’s up to you whether or not to keep your magazine fully loaded, but if you do decide to do so just be sure to check on it occasionally to make sure everything is still in working order.
Eric Answered question September 2, 2022