Like almost every iconic weapon in the evolution of firearms, the modern sporting rifle has been embraced by hunters. We see its action, handling, adjustability and compatibility with varied optics and accessories as the perfect combination for hunting everything from coyotes to moose—and we’re right. This versatility isn’t magic, however. Gun manufacturers made the MSR what it is by designing it wholly unlike conventional bolt-actions, semiautomatics and lever guns. In short, MSRs function differently because they are different—in their barrels, their firing pins, their actions and more.