Winchester Big Bore 357 Magnum ammunition delivers 158-grain jacketed hollow point bullets at 1460 fps. Semi-jacketed design controls expansion for reliable performance in defense and hunting applications.
Winchester Big Bore ammunition represents a proven choice for shooters who demand reliable performance when it matters most. This 357 Magnum loading pairs a 158-grain semi-jacketed hollow point bullet with a muzzle velocity of 1460 feet per second—a combination engineered for controlled expansion and consistent terminal performance.
The semi-jacketed hollow point design is the foundation of Big Bore's reputation. This bullet construction manages expansion reliably across a range of velocities and target materials, making it equally at home in personal defense scenarios or hunting applications. The 158-grain weight provides substantial energy delivery while maintaining controllable recoil in most 357 Magnum revolvers.
Winchester Big Bore is trusted for personal defense and hunting situations where dependable performance is non-negotiable. Whether you're carrying for protection or pursuing game, this ammunition delivers the consistency serious shooters expect from Winchester's heritage of ammunition excellence.