The designation “SXP,” used by the Winchester Repeating Arms Company, refers to their line of pump-action shotguns. These firearms are known for their inertia-assisted action, which offers reliable cycling and reduces recoil. A typical example might be a 12-gauge model configured for hunting or sport shooting.
Winchester’s choice of this nomenclature likely reflects a desire to create a distinct and memorable product identity. Inertia-driven shotguns generally require less cleaning and maintenance than gas-operated systems, an advantage appealing to many shooters. Historically, pump-action shotguns have held a prominent place in both the hunting and sporting worlds, valued for their versatility and robust construction. The development of inertia-assisted operation represents a significant advancement in this established firearm type.