Winchester AutoBuck | 12 Gauge | 2.75" | 12 Pellet | 1 Buck | 250rd Case

The Winchester AutoBuck 12 Gauge Ammo (USAB121) reengineers traditional shotgun payload philosophy, built from the ground up to overcome the cycling finickiness of modern semi-automatic shotguns. While standard low-recoil or light-payload defensive shells can starve gas-operated or inertia-driven autoloaders, AutoBuck delivers a precision-tuned mechanical impulse that guarantees clean extraction and positive feeding across demanding shotgun actions.

Moving away from traditional 9-pellet #00 configurations, this specialized bulk 250-round case utilizes a high-density #1 buckshot architecture, maximizing terminal impact and downrange pattern coverage with every pull of the trigger.

The AutoBuck Engineering Advantage

Semi-automatic shotguns offer massive rapid-fire advantages, but they require consistent, specific pressures to function smoothly.

• Optimized Semi-Auto Gas Pulse: Driven at a crisp 1,325 FPS muzzle velocity with a tuned 1-ounce payload, AutoBuck bleeds the perfect volume of gas back into the piston system, ensuring reliable bolt travel and clean cycling without damaging your weapon.

• High-Density #1 Buckshot Payload: Stuffed with 12 hardened lead pellets of #1 buckshot instead of the standard 9 pellets found in #00 buck, this design adds 3 additional wound channels per shell, radically improving hit probability on moving targets.

• Increased Pattern Efficiency: The slightly smaller diameter of #1 buckshot allows the pellets to stack more uniformly inside the shot cup, reducing pellet deformation upon ignition and producing incredibly tight, predictable defensive groupings.

Hardened Construction for Duty and Field Use

Your ammunition needs to handle harsh operational environments with ease, and this load is crafted to strict American manufacturing standards.

• Premium Boxer-Style Priming: Utilizing consistent shotshell primers to guarantee instant ignition under freezing rain, high humidity, or stagnant storage conditions.

• High-Strength Plastic Hulls: Smooth-feeding low-brass hulls resist swelling and deformation inside hot chambers, ensuring slick, frictionless ejection under high-volume strings of fire.

Versatile All-Purpose Logistics

Whether you're setting up a high-speed competition gun, configuring a home defense autoloader, or heading into thick brush for deer and predator hunting, the AutoBuck system provides a single, high-performance option to feed your entire inventory. By combining match-grade pellet uniformity, hard-hitting terminal energy, and absolute autoloading reliability, this bulk 250-round case arms you with a duty-ready fuel reserve built to dominate the field.

Feed your semi-auto with zero hesitation. Add a 250-round case of Winchester AutoBuck 12 Gauge #1 Buckshot to your ammunition vault today.