Shotgun owners, rejoice! Winchester Ammunition just dropped a game-changer with the launch of AutoBuck—a 12-gauge 2-3/4-inch buckshot load engineered specifically for semi-automatic shotguns. If you've ever experienced the frustration of buckshot failing to cycle reliably in your favorite semi-auto scattergun, this is the fix you've been waiting for. AutoBuck combines #1 buck pellets with innovative hull design and finely tuned velocity to deliver flawless feeding, firing, and ejection every time.

The Problem Winchester Solved
Semi-automatic shotguns like the Benelli M4, Beretta 1301, or Mossberg 930 are powerhouses for home defense and hunting. But traditional buckshot loads? They've been the Achilles' heel. Crimped hulls on standard buck often hang up during feeding, or the wad sticks in the chamber, turning your reliable defensive tool into a single-shot club. Winchester's R&D team dove deep into this issue, testing thousands of rounds across multiple platforms. The result? AutoBuck, optimized from the ground up for semis.
Innovative Design Features
At the heart of AutoBuck is its double-radius hull. This isn't your grandpa's straight-walled plastic. The dual radii mimic the contour of semi-auto magazines and chambers, ensuring smooth extraction and reduced friction. Paired with #1 buck pellets—typically 16 lead spheres packing serious downrange energy—it's wrapped in a low-recoil wad system that maintains consistent velocity without over-gassing your gun.
Velocity is key here: clocking in at around 1,200 fps (optimized for semis), it strikes the perfect balance. Too hot, and you risk battering your shotgun; too slow, and cycling fails. Winchester nailed it, making AutoBuck compatible with gas-operated and inertia-driven systems alike.
- Caliber: 12 Gauge, 2-3/4-inch
- Pellet Count: 16 x #1 Buck (approx. .30 cal, 40 grains each)
- Muzzle Velocity: ~1,200 fps
- Hull: Double-radius for reliable cycling
- MSRP: $18-22 per 5-round pack (street price TBD)
Real-World Performance: Hunting and Defense Ready
Picture this: You're in the deer woods, patterning bucks at 40 yards. AutoBuck spreads tight—think 12-18 inches at that range with a modified choke—delivering multiple hits for ethical kills. Hog hunters will love it for flushing thick brushers without the over-penetration worries of slugs.
For home defense, it's a no-brainer. In a high-stress scenario, you need your shotgun to go bang every pull of the trigger. No fumbling with pumps or worrying about malfunctions. Pair it with your go-to semi-auto, and you've got a Second Amendment fortress. Winchester's testing shows 99%+ reliability across 1,000-round torture tests on popular models. That's the kind of dependability that keeps patriots safe.
"AutoBuck transforms semi-autos from finicky buckshot eaters into unstoppable forces. It's about time big ammo stepped up for the modern shooter." – GunStuff.tv Field Tester
Why This Matters for 2A Enthusiasts
In an era where anti-gun zealots push restrictions on every front, innovations like AutoBuck remind us why the Second Amendment endures. Reliable firearms and ammo aren't luxuries—they're lifelines for self-defense, hunting traditions, and sporting heritage. Winchester isn't just making shells; they're empowering responsible Americans to exercise their rights without compromise. No more settling for subpar loads that could fail when it counts. This is pro-2A engineering at its finest, putting power back in the hands of the people.
Get Yours and Hit the Range
AutoBuck is rolling out now at major retailers like Bass Pro, MidwayUSA, and your local gun shop. Stock up, run some through your semi-auto, and see the difference. Pattern it, stress-test it, and share your results in the comments below. Have you battled buckshot jams before? What's your favorite semi-auto shotgun setup?
Stay armed, stay free. Winchester's AutoBuck is here to keep your shotgun running when it matters most. God bless America and the Second Amendment!
Disclaimer: Always follow local laws, practice safe handling, and test ammo in your specific firearm.

