Description
If you run a .410 for turkey hunting, you already know the challenge: making every pellet count from a compact platform. This Winchester load addresses that with copper-plated shot fortified with 8% antimony, which keeps pellets uniformly round and hard throughout their flight path. The result is noticeably denser patterns compared to conventional turkey ammunition.
Pattern Density and the Diamond Grade Advantage
The hardened copper-plated shot is paired with Grex buffering material to reduce deformation as pellets leave the barrel, maintaining consistency across the effective range. At 30 yards with a full or modified choke, these shells deliver approximately 20% more pellets concentrated in a 20-inch circle than you'd get from standard lead shot. That kind of pattern density matters on a target the size of a turkey's head, especially when your margin for error is already slim with .410 bore limitations.
.410 Turkey Load Built for Realistic Distances
Loaded to 1100 feet per second with a full-length protective wad, this ammunition functions reliably through modern .410 shotguns without excess pressure. The .410 bore has always been a light-recoil option for hunters who value maneuverability over raw firepower, and these shells respect that platform while delivering performance that works out to 30 yards with proper choke selection and shooting discipline.
Versatile Beyond Turkey Season
While engineered for turkey, field testing has shown these perform well on other upland targets and predators where pattern density matters. The copper plating and antimony content keep pellet hardness consistent regardless of application, and the load's velocity stays manageable in lighter .410 shotguns.
Key Specifications
- Gauge: .410 Bore
- Shell Length: 3 inches
- Shot Size: #7.5
- Shot Weight: 3/4 ounce
- Shot Material: Copper-plated lead with 8% antimony
- Muzzle Velocity: 1100 feet per second
- Rounds Per Box: 10
- Manufacturer Part Number: STH4137
- UPC: 020892026346
- Primer: Centerfire
- Case Material: Brass and plastic
- Intended Use: Turkey hunting
- Buffering: Grex buffer reduces shot deformation
What’s Included
- 10 Winchester Double X Diamond Grade .410 bore shotgun shells
Frequently Asked Questions
Will these .410 shells pattern well enough for turkey hunting?
Yes, but with caveats. The Diamond Grade process delivers approximately 20% more pellets in a 20-inch circle at 30 yards compared to standard lead loads, which improves your chances significantly. However, .410 shells still require a full or tighter choke and disciplined shooting at realistic distances (25-30 yards). Pattern your specific gun before the season to confirm your choke delivers the density you need.
How does the copper plating and antimony affect performance?
The 8% antimony makes pellets extremely hard so they resist flattening as they travel downrange and through the target. Copper plating adds another layer of hardness while reducing bore wear. Together, these keep pellets uniformly round longer, which means tighter patterns and better penetration on game compared to soft lead shot. This is why Winchester advertises 20% more pellets in the vital zone at 30 yards versus standard loads.
Can I use these for anything besides turkey?
Yes. Hunters have used these successfully on crows, squirrels, rabbits, and other small game where pattern density and penetration matter. The hard shot and consistent velocity work well for varmint control too. Just remember the .410 is inherently limited in range and power, so target selection should reflect realistic effective distance.
Are these recoil-heavy compared to other .410 turkey loads?
No. At 1100 feet per second, these are considered high-velocity for the .410 but remain manageable in most shotguns. They'll kick less than larger gauges or magnum turkey loads. The full-length protective wad helps cushion the shot column during acceleration, which contributes to both consistent ballistics and shooter comfort.






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