Should the magazine box fit flush against the action?

The magazine box should indeed fit flush against the action. When the magazine box aligns perfectly with the action, it ensures that there is a reliable connection between the magazine and the chamber. This alignment is crucial for feeding cartridges smoothly into the action and helps prevent misfeeds or jams that could arise from misalignment. Additionally, a flush fit contributes to the overall stability and accuracy of the firearm, as it minimizes play that can affect the consistency of operation. Proper fit reduces the risk of mechanical issues and enhances user confidence, making it a fundamental aspect of firearm design and function.