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Q&A · Hunting

Can you effectively use 20 gauge semi-auto shotguns for ducks?

April 5, 2026

Quick Answer

Yes, 20 gauge semi-auto shotguns can be effectively used for ducks, offering a lightweight and manageable option for waterfowl hunting.

Choosing the Right Gauge and Choke

When selecting a 20 gauge semi-auto shotgun for duck hunting, consider a model with a 3-inch chamber to allow for the use of 3-inch shells, which provide more shot and more energy than standard 2 3/4-inch shells. A choke tube with a modified or full constriction is ideal for duck hunting, as it helps to maintain shot patterns at longer ranges. For example, a Remington 870 Express 20 gauge with a 3-inch chamber and a modified choke tube can be an effective choice.

Shotshell Selection

For duck hunting, use high-velocity 20 gauge shotshells loaded with steel or bismuth shot, which provide a dense pattern and good penetration. A 3-inch shell loaded with 1 1/8 ounces of shot will provide a good balance between pattern density and recoil. Shotshell brands such as Federal, Remington, and Winchester offer high-quality options for duck hunting. When choosing a shotshell, consider the type of duck you are hunting, as well as the range to the target.

Hunting Techniques

When using a 20 gauge semi-auto shotgun for duck hunting, focus on getting close to the birds and using the shotgun’s quick handling and fast follow-up shots to your advantage. Practice your shooting technique, including the use of the gun’s slide and recoil system, to ensure smooth and consistent operation. When shooting at ducks, aim for the body or wings, rather than the head, to ensure a quick and humane kill.

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