Winchester Bismuth 20-gauge shotshells offer a non-toxic, waterfowl-approved alternative for duck and goose hunters who need to meet legal shooting requirements. Loaded in 3-inch cases with #4 shot and moving downrange at 1300 feet per second, this ammunition delivers effective pattern density for birds working over decoys and across open water. The 1-ounce payload is purpose-built for 20-gauge ballistics, hitting the performance sweet spot that 20-gauge shooters have relied on for generations in waterfowl applications.
Bismuth shot is denser than lead and requires no special barrel modifications—it cycles through any smooth-bore 20-gauge shotgun without issue. That means you can grab your favorite field gun without worrying about compatibility or upgrade costs. For shooters committed to non-toxic ammunition, whether by regulation or personal choice, Winchester's formulation ensures reliable patterns and knockdown that won't leave birds crippled at the edge of your spread.
Each box contains 15 rounds—a practical quantity for a morning hunt or a shooting session at the range. The ammunition is reloadable, so if you're set up for shotshell reloading, you can stretch your investment further with fresh components. Standard Boxer primers and non-corrosive construction keep your gun running clean, and the robust Winchester case engineering means consistent ignition and reliable performance season after season.
Key Features
- Non-toxic bismuth shot approved for waterfowl hunting in regulated areas
- 3-inch magnum case for extended range in a 20-gauge platform
- #4 shot size sized for ducks and similar game
- 1-ounce payload optimized for 20-gauge handling
- 1300 feet-per-second velocity for reliable pattern and energy
- Reloadable cases with Boxer primer for handloaders
- Non-corrosive formulation for easy cleanup after shooting
- Compatible with all smooth-bore 20-gauge shotguns
Specifications
| Gauge | 20 |
| Shell Length | 3 inch |
| Shot Type | Bismuth |
| Shot Size | #4 |
| Shot Weight | 1 ounce |
| Muzzle Velocity | 1300 feet per second |
| Primer Type | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Non-Toxic | Yes |
| Barrel Type | Smooth bore |
| Rounds Per Box | 15 |
Frequently Asked Questions
Are these shells legal for waterfowl hunting?
Yes. Winchester Bismuth ammunition is non-toxic shot, which meets federal and most state regulations for waterfowl hunting. Always check your local season and area regulations before hunting, as some states have additional restrictions.
Will bismuth shot damage my 20-gauge barrel?
No. Bismuth is safe for use in any smooth-bore shotgun. Unlike some steel shot alternatives, bismuth does not require specially hardened barrels and cycles reliably in standard 20-gauge guns.
Can I reload these shells?
Yes. The cases are reloadable with Boxer primers, so if you're a handloader, you can refresh them with new powder, wads, and shot after firing.
What game is #4 bismuth shot best suited for?
#4 shot is sized for ducks and similar waterfowl. The pellet count and energy delivery make it effective on birds working decoys or passing overhead at typical hunting distances.

